As you can see from this picture, this sturdy hardware cloth Noel Guard over the 1.5″ entry hole is no problem for the bluebirds–as a matter of fact, they actually like them and use them to guard their nestbox and also as a “porch”.   VBS highly recommends the use of these guards for ground predators that may get past the stovepipe ground guard on the pole and underneath the nestbox and also for any avian predators.   As County Coordinator for VBS, I encourage the use of them to others who want to install a nestbox; I use them on my own trail, as well, since most of my boxes are installed in rural Patrick County habitat.

For more info about this gorgeous Blue Ridge Mountains resort location in Patrick County, Virginia–a beautiful retreat, spa, and vacation spot with something special for everyone, see their website:  http://primland.com/

This is a full VBS recommended nestbox installation, including the two predator guards. The nestboxes were made in Primland's workshop. The wood is Western Red Cedar (not aromatic cedar!)

The female Eastern Bluebird with food for her brood--it appears to be a grasshopper!

Bluebirds have commenced nesting for first brood.  Photo taken today–March 23, 2011.  This is Day 4 of nest building! Nest is not quite finished (a bit lopsided now) – my prediction is approximately 2 more days to finish and create the perfectly shaped cup–this building is earlier for first brood 2011 than past 2 years.   White Pine needles (choice one for bluebirds if available).  The scoring seen on left side of picture is a “fledging ladder” or toe-hold used by baby birds to use at fledging time (maiden flight) as assistance to help them stay at entry hole.  However, bluebirds’ feet don’t need this as much as Tree Swallows do, but I like the scoring on all of my boxes.  Last two years, first egg laid was April 8 (one of those years was on Easter morning!  I remember it distinctly as I visited a few of my boxes late afternoon on the holiday.)  If this warmer weather continues, she may start laying any day.  If we have a sudden cold snap during egg laying (usually one per day in the morning), she’ll delay incubation until the warmer weather returns again.  Her mate will bring her food as she lays her clutch, usually in the mornings.  In the afternoons, she most likely will leave the box for a break, exercise her wings, and to hunt for her own food.   On my trail, generally I get 5 eggs per clutch.  I rarely have seen 6 eggs in my boxes.

This will be my 6^th year of my interest in bluebirds  and my 4^th year of having a bluebird trail of my own.  I want to be sure I don’t have more boxes installed that I can be a responsible “landlord” to and that I’m able to monitor what I have at least once a week. Sometimes I do it twice a week, depending on activity or if I’m fixing a particular issue or problem along my trail, or if bad weather delays me to monitor on a fixed schedule.  I have to drive to all my boxes—they are spread out.   To install more boxes than I can physically monitor is not recommended—really, it’s a bad idea all around.   Too many things can go wrong for the bluebirds.  I will add more boxes to my trail as I think I can handle the responsibility of taking care of those boxes.   I am finding a box that isn’t getting any activity within a two-year period needs to be moved to different habitat.  I make this determination each autumn after I summarize my trail results for that season.  I like November as a good time to tweak my trail—at the same time I winterize my boxes for roosting for the cold winter months.  The Virginia Bluebird Society gets my trail results and incorporates them with other monitors’ records from other counties for all of Virginia combined.  This is how we can see how the birds are doing year after year.  Thanks to installed nestboxes and monitoring, the birds are increased in numbers in the past decade.   You can go to the VBS website to see the records—go take a look:  http://www.virginiabluebirds.org/trailstatistics.html As a monitor, accurate records, such as the date of the first egg laid (exciting to see that first blue egg) and when incubation by Mama Bluebird begins is really important to me.  She delays incubation until she’s finished laying her clutch.  Once I have those dates secured, I can better anticipate the date of that first hatching—by far the most thrilling experience for me every season!

I have found it helps to have people networking in support of someone like me on behalf of the bluebirds.   Many thanks to The Floyd Press for getting this article  released in Floyd County and beyond of my efforts to get the word out about my availability to assist in education about bluebirding and how to properly install one box or a trail of boxes using a properly made nestbox and predator guards:   http://www.swvatoday.com/news/article/peoples_efforts_have_bluebirds_rallying/9260/

It’s paying off.  I’ve had many inquiries about bluebirds this past week.   Primland Resort in Meadows of Dan has started a trail with many thanks to the Golf Superintendent who contacted me for information.  I will be training him on monitoring the boxes installed on their grounds.   Primland Resort built Virginia Bluebird Society recommended nestboxes from their nestbox plan….and ….with TWO predator guards.  We are making a joint-effort presentation to the local Patrick County 4-H Club in mid-March at the Patrick County High School.  There is a particular joy I feel when I can successfully tell others what the bluebirds.   Many thanks to all who continue to support the bluebirds in my two Counties–Floyd and Patrick.  I can’t tell you enough how inspirational you are to me and, just so you know, you will be to others when they see what you’re doing to help these birds.    I believe people I talk to feel the energy behind why we can get hooked on helping the bluebirds.

I will be starting my weekly list of findings of the Test Site on my trail of the Two-Hole Mansion, Year 2.   As of February 18 this year, 2011, the (English) House Sparrow has started nest building in that box already.  This is the earliest I’ve seen yet.  I removed the nest and will return this weekend to see if another has started; frankly, I’m expecting one.  If you refer to my tabbed page of this test site, you’ll see the bluebirds were able to move in last summer after weeks of removing the House Sparrow nests and successfully fledge bluebird babies.   You’ll read what this test site is about and why I’m NOT trapping the sparrows for this test.   It should be noted over and over again:  The  (English) House Sparrow, which is NOT native to our country and is an aggressive bird taking cavities from our native birds, should not be allowed to use and breed in our nestboxes installed for bluebirds and our other native cavity-nesting birds!

So, with this update above, I’ll be seeing you again soon, as the nesting season is just around the corner; my posts here will start to increase as bluebird activity increases along my trail.   I’m busy answering inquiries about bluebirds and helping others to prepare for monitoring bluebird nestboxes for the VBS.  The males are out now establishing their breeding territory. For those who have boxes now, make sure they are ready for nesting.  Early March is a good time to soap the ceilings of your boxes to deter wasps, which always start showing up in warmer weather.  I’ve seen some out already in our area.  I create a soap paste mixture by taking Ivory soap bars and let them sit in a plastic container in water.  Once the soap paste is the right consistency, I use a pastry brush to “paint” the soap mixture on the ceiling of the boxes and slightly down the sides and underneath the eaves of the larger roof of my boxes.   I do it early enough to allow it to dry so it is before the female starts entering the boxes to build the nests so the damp soap  paste does not get on her wings.  The boxes should dry first before the birds investigate nesting in them.

If you don’t know yet what the bluebird sounds like, check out the Cornell’s Lab of Ornithology’s All About Birds page on the Eastern Bluebird’s warble-song-call.   For me, this is a sweet sound of Spring when I hear this:  http://www.allaboutbirds.org/guide/Eastern_Bluebird/sounds

Filed under: Birds, Blogroll, Bluebird Trail, Bluebirding and Bluebirds, Bluebirds, Nature, Virginia Bluebirds ]]> http://woolwinehousebluebirdtrail.com/2011/02/25/warble-it-out-for-bluebirds-anticipation-of-the-nesting-season-of-2011/feed/ 0 Woolwine House Bluebird Trail http://woolwinehousebluebirdtrail.com/2010/12/11/winter-thoughts-for-bluebirds/ http://woolwinehousebluebirdtrail.com/2010/12/11/winter-thoughts-for-bluebirds/#comments Sat, 11 Dec 2010 19:44:17 +0000 Woolwine House Bluebird Trail http://woolwinehousebluebirdtrail.com/?p=2061 ]]> Resident bluebirds are in mixed flocks here with bluebirds migrated from the North.   During snowstorms, ice storms, and frigid snaps in Southwest Virginia, I am feeding bluebirds on my property with bluebird suet and live mealworms.   They eat fruits and berries this time of year.  This food can be hard to find during harsh weather.  All of my nextboxes have been winterized so that the roosting cavity-nesting birds have a warm bed and no cold drafts and wet snow or rains get inside the ventilation gaps.   I use pine needles about two-inches thick and bat it down with my fist to break down the scratchy points of the needles.  If water gets onto a bed of needles, which hopefully won’t happen, that moisture seeps to the bottom and out of the drainage areas on the box floor.  This way the topside needles dry out.   Grasses can stay wet and absorb water and then freeze.  Many bluebirds will pile inside a nestbox for roosting together and use each others’body warmth during the cold nights.   Never remove a nestbox during winter months–the birds love them for roosting.   I think that’s marvelous!

One additional thought to share during the time we all are thinking of installing new bluebird boxes by February 2011:   …………. please install your bluebird box on a 3/4-to-one-inch size EMT (conduit metal) pole with at LEAST the ground (stovepipe is best!) predator guard below the box so that we landlords are not setting up the birds for failure during the upcoming nesting cycle.   Ground predators I have to deter are snakes, raccoons, ants, mice, squirrels, roaming housecats, and feral cats.   Nestboxes installed on a fence line, tree trunk, 4×4 wood post, and utility pole are dangerous to the birds.   Please don’t do it!   Simply put, to lure bluebirds into our boxes and not help them stay safe from ground predators is like playing a practical joke on them.

Before we know it, the males will be leaving the mixed flocks and looking to establish territories for mate hunting and then “house hunting”.  Have the boxes ready by February 1st.   Please contact me for advice on getting it done.  Let me train you to monitor just one box.   You won’t regret it as soon as you discover the joys of bluebirding!

I hope everyone has safe…. and warm….holidays to come.

Per the VBS at their website:  www.virginiabluebirds.org:

Predator Guard Designs

We utilize two types of predator guards to help limit predation of our bluebird nest boxes. One we call the Cat/Raccoon Guard is made of a heavy wire mesh and goes on the front of the nest box to help fend off raccoons, cats, opossums, large birds, etc. This works by backing the critters off so it is too far of a reach into the box to get the eggs or babies. The pattern for the Raccoon Guard now posted on this site is slightly different from our original version. We have changed it to make it easier to cut out and lace together. The other guard, Snake Guard, is made of round metal ducting material and is installed on the mounting pole for the nest box. This guard is primarily to inhibit access by snakes which just love to dine on little birds and eggs. This guard can also fend off climbing cats, squirrels, raccoons, etc. (It also provides a bit of a challenge for squirrels when used on pole-mounted bird feeders.)

This snake is fed by bluebird nestlings. This is a wonderful nestbox; however, it has no predator guards on it....because no ground guard (particularly to ward snakes away), this snake made it to the nest. Note: The Black Rat Snake is a good snake. We must not kill them. Let's keep them off of our installed manmade nestboxes, though, and be good landlords of our nestboxes so the bluebirds can succeed in raising their family to healthy fledglings to healthy bluebird adults.

Cute little guy isn't he? He's very good getting to bluebird nestboxes. Use predator guards to help the cavity-nesting birds.

Recommendations below from the VBS for box mounting and guards below:

This is what I use on my trail. It's 99% effective for me.

Avian predators, raccoons, feral and housecats are predators. The entry hole guard has helped Virginia bluebirds succeed!

This is a modified North American Bluebird Society nestbox with the mounting diagram suggested by the Virginia Bluebird Society. It has the Kingston Stovepipe Ground Guard and the hardware cloth Noel guard over the entry hole.

This is a typical box on my trail.

All the best…………Christine

“Woo-Hoo for Blue!”

I hope to hear from you...leave a message at my mobile device: (703) 919-4302

Here are a few photos from the presentation below.  There were many displays and handouts for the attendees.  A Q&A period followed after the PowerPoint slideshow.   There were many questions afterwards.  That, for me, is the most enjoyable–talking about bluebirds and what I’ve learned these past 5 years and how best we can help them succeed….as human landlords…to make sure the bluebirds fledge successfully and why we install nestboxes on poles and use predator guards.   I really enjoyed meeting everyone.  I have the Virginia Bluebird Society, the North American Bluebird Society, and all of the bluebird experts I’ve learned from to thank that have helped me understand more what bluebirding is all about and the joys we get from monitoring the boxes so that we can get statistics of how they are doing and see how the bluebirds have “come back” in numbers in the past decade, thanks to installing nestboxes.   Other than for educating others on this, to see the birds closeup is the biggest thrill of all, especially when I can share that excitement and pass it on!

This was such a nice room for the group. Coffee, tea, bottled waters, and desserts were served. This was the beginning of the PowerPoint slide show. We are discussing the three different species of bluebirds in North America and the ranges they can be found. In Virginia, we have only the Eastern Bluebird. We are too far East for the Mountain Bluebird.

Display Tables and three easels with prepared posterboard displays.

There are a variety of good books and pamphlets available to help new bluebirders get started out right.

Lots of interesting free materials (handouts), mostly from the Virginia Bluebird Society and the North American Bluebird Society. VBS is an affiliate club to NABS. Included were handouts about what type of shrubs and trees bear fruits for the birds to eat in the winter as well as info about mealworms and VBS nestbox building plans, VBS recommended predator guard plans, and VBS recommended installation instructions (on a 1" conduit).

Many thanks goes to the Reynolds Homestead staff for assisting me in a successful presentation. Since this was an afternoon show, we had to close the blinds in the rooms to see the projected PowerPoint slideshow. The end of the show had a surprise 3-minute musical ending to a series of gorgeous professional photos of young bluebirds fledging and being raised outside the nestbox in the trees by their adoring bluebird parents!

I will be out on my trail next week to winterize all the boxes so that the bluebirds and other cavity nesters can roost in the boxes.  What is winterizing?

The ventilation areas of each box will be plugged to keep cold drafts and rain and snow out of the boxes while the birds keep warm in them.  The only sections NOT plugged will be the drainage holes in the box floors and the entry holes, of course! 

See  a series of pictures below of winterized boxes on my trail.  You’ll see how the materials help keep the boxes warm!

Also next week, two of my boxes will be moved to new locations.   My criteria for changing is the current box locations were not used by cavity nesters this past season.  It’s good to tweak the trail each year for best use of all nestboxes available for the birds! The Virginia Bluebird Society’s  website  helped me when I went to Lowe’s Home Improvement to get the supplies…  cost was $14 for everything and all the materials can be recycled again for the next winter season! CLICK ON LINK below: http://www.virginiabluebirds.org/winterizingnestboxes.html

About an inch of grasses or pine needles for the floor should be placed.

I’m now officially feeling empty nest syndrome.  I go through this every year. It’s a good time to reflect on how the birds did in comparison to years prior and to gather and summarize my statistics for the Virginia Bluebird Society and then to the North American Bluebird Society.   I hope this website has been beneficial and enjoyable to you in some way this season.   Thanks for all the inquiries and support, folks!  Again, many thanks to my neighbor, Carl, for his help on my trail this year in movement of some of the boxes and repairs needed before the season started.

Christine

Also, good news in the test site box “two-hole mansion” on my trail….the bluebird babies just fledged either on Day 19 or Day 20–Saturday afternoon or sometime on Sunday morning or afternoon, July 24th or 25th.  We’ll see if another nesting will be attempted there.   See my final notes on the “2-Hole Test Box” page, updated today, July 28th.

I always take notes what changes each year on my trail–what worked…what didn’t…what was a wonderful surprise….what disappointed me.   Year after year, there is always something new that happens.   I feel honored to be a part of nature in this way and making my contributions to help the Eastern Bluebird in the area where I live.

Once all boxes are cleaned and it’s been established the breeding season of 2010 is closed, I know the bluebirds here will flock with the migrators from the north and will stick together until next spring again when the males start establishing new territories and mates.   The anticipation of spring is particularly satisfying for me as I await the first males to look at my boxes and for the first male ruby-throated hummingbird to arrive again!  My hope is we have no major snow and ice storms for our resident bluebirds that will take their food sources from them (fruits and winter berries).

First, I make sure I monitor at least once a week.  I prefer about every 4 days. I can keep a better handle on happenings if I monitor more than once a week.

After I think there has been a successful fledging, I can actually tell by looking at the remaining nest if indeed a fledging took place as opposed to a snake predating the older nestlings.   The parents always “change diapers” or clean up the nests of the fecal sacs.   During the fledging period, usually within a 24 hour period (sometimes a little longer if the parents think it’s not safe or a nestling is weaker than the others), the parents don’t bring food to the nestlings as often or clean up their waste matter to entice them to make the first flight.   The adults will also swoop down to the nestbox and call to them to come out.  It’s fun to watch if you can do so!   Most of the time during fledging, the waste matter (fecal sacs) remains in the nest as the young birds fledge.   If a snake gets them, their usually is no waste matter in the nest.  The parents are diligent the nest stays clean.   When I see a flattened nest with waste matter, that’s a good sign the youngster made it!

Note:  I always look for waste matter left on the front-side of the box under the entry hole.  That’s a good sign they made it out OK, leaving a bit of matter behind as they fly out. This is cleaned off between broods by me so the box is as clean of the birds’waste matter as much as  possible.

When cleaning out a nestbox, I turn nests over looking for blowfly larvae and other possible parasites in the nest material which are not visible in the box itself (such as the beginnings of ants or mites).   It’s really important to always remove used nests but PARTICULARLY those that shows parasites, such as the example of this first brood nest for this season (first time I ever had blowfly larvae in first nests).   The female likes to build a new nest for the second and possibly third broods.  Clean nesting material is good.  Otherwise, she may bring in new nesting materials and build on top of old nests that could have parasites in them.  This also brings the nest higher to the entry hole, which is not a good idea for the safety of the nestlings.  The youngsters did make it out OK according to what I could determine in the nest you see in Photo 2 below, but there was the beginnings of the hatched blowfly eggs in the first brood.  The larvae in the nest cause harm to the nestlings if they multiply and then the nest is heavily infested with them.  The more larvae present in young nestlings’nest material, the more chance they become anemic from losing blood to the larvae, which feed on them at night.

In the photos below, you’ll find two photos of nests:

First photo shows a clean pine needle nest.  I inspected it in detail from top to bottom — no evidence of any larvae, no larvae nest “dust” (the blowfly breaks up the nesting material to a fine dust usually found on the bottom of the nest along where the nestbox floor is located where they rest during the day), and as you can see, there is waste matter not picked up by the parents.  When I inspect nests during breeding, I always take a small spatula and lift the nest up a little to look for the dust, a sign of possible blowfly larvae.

The second photo below shows the bottom of a nest (what appeared to be a clean nest on top when I first looked) when I flipped it over, this is what I found…this detail of blowfly larvae in first brood nestings material went into my trail notes.   This is the earliest I’ve ever seen the larvae appear in nesting material along my trail.   I am thinkig the early warmer weather this Spring may be why–only theory on my part–nature’s way.   Blowflies in birds nest has been going on for centuries.  However, by installing manmade nestboxes, my goal is for the bluebirds to fledge, so I make sure as best I can that they make it successfully to bird life outside of the box.   Monitorig is fun but it’s work, too–I don’t want to monitor boxes to find sick or dead birds.  It’s best not to have a nestbox up if you don’t take care of the birds using them.

Bottom line to monitors:  Always inspect nests to know for sure what happens in the nest during breeding season.   What remains of the nest tells a story.   Never drop old nests near the nestbox, as this attracts predators to the area.   Always take it away in a plastic bag and dispose of it later. Any pristine clean nests I have I keep for emergences that could be possible later.

Anyone know what emergencies I would need a clean, used bluebird nest for?  There are two possible reasons.  I will update this post with the answers.  Leave a comment here, if you wish, if you know what the reasons are.

One more thought:  we can’t assume once the nestling fledge, they actually survive to adulthood.  Survival rate will vary on the young birds that fledge.   We can’t assume every empty nest means all young birds live a long life.   If possible, if you have a nestbox by your home, you can look for the fledglings in the area in your tree branches, put out a platform feeder with mealworms to entice the adults to feed the mealworms to the fledglings, and you can watch them for another month or so as they learn to find food for themselves.  If the youngsters don’t make it, nature rules.   It’s probably good the bluebirds try more than once per season to breed.   The chickadee generally has only one brood per year–interesting to me why some species breed 2-3 broods and others once.   The House Sparrow breeds average 5 times per season!   The start earlier and breed later each season.   The one sparrow species not native to North America breeds often!

I surmised the young birds fledged successfully in this nest. The waste matter remains behind which is normal during the fledging period. After turning this nest over and inspecting it, there was no evidence of parasites. The nest was clean on the bottom side. With gloves, I pick off the dried matter and keep the nest handy for possible emergencies later. The nest I keep is clean through and through. These are white pine needles.

The young birds made it out with evidence of matter on top side. However, when I turned it over to inspect it, this is what I found on the bottom of the nest. I tossed this out in a tied plastic bag in a waste can away from the nestbox.

Filed under: Birds, Blogroll, Bluebird Trail, Bluebirding and Bluebirds, Bluebirds, Nature, Photography, Random, Virginia Bluebirds ]]> http://woolwinehousebluebirdtrail.com/2010/06/23/checking-nests-after-fledgings/feed/ 2 Woolwine House Bluebird Trail Sample of a clean nest of parasites. Blowfly Larvae Nest on Bottom Side http://woolwinehousebluebirdtrail.com/2010/06/13/bluebird-trails-maintenance-is-key/ http://woolwinehousebluebirdtrail.com/2010/06/13/bluebird-trails-maintenance-is-key/#comments Sun, 13 Jun 2010 15:36:46 +0000 Woolwine House Bluebird Trail http://woolwinehousebluebirdtrail.com/?p=1773 ]]> A monitor’s day out on a bluebird trail is very well reflected in Bluebird Bob’s poem, which I have posted on this site on another page.  It’s worth repeating here, then read on regarding my trail notes from Saturday, June 12:

THE TRAIL MONITORS

A Poem by “Bluebird Bob” Walshaw

Out they go, rain or shine,
Checking on their Bluebird line.
Helping out those birds of blue,
Walking in the grassy dew.

Opening nestboxes one by one,
Reveling in the morning sun.
Finding nests and eggs so blue,
Spring’s promise coming true.

Another nest with little ones,
Waiting for the parents to come
From east, west, north or south,
With insects for each open mouth.

One more nest -oh so sad!
A roving Black Snake has been bad.
Predator guards work in many ways
But nature can have a different say.

Another nest with babies strong,
Showing that it won’t be long
Before their growing wings they’ll try
And out into the world they’ll fly.

They continue to check nest after nest,
Enjoying successes and fighting pests.
Enemies with beak and claw,
Sharing the Bluebird’s luck of the draw.

But they know from day to day
That all their efforts lead the way
To bringing the Bluebirds safe and strong
Back where all can hear their songs.

Between some thundershowers, I was able to carefully and methodically visit all my boxes this weekend.  My findings were two boxes that successfully fledged young bluebirds for first brood, those adult bluebirds have not returned to those boxes.   Part of my theory is a fast growth (since last trail check) of weeds and thatch near and around the pole.  Within one week, morning glory (a fast-growing ivy) grew and attached itself not only to the pole but to the stovepipe guard all the way past the hardware cloth at the top—all in one week’s time!   Other weeds, like milkweed and thorny growth type plants have inundated some of those poles.  This is telling me to visit my trail at least every 3-4 days, not once a week. I like this schedule better also to get a better idea how the birds are doing and what they are doing.  I look to see both male and female, where they are watching me from, if the nestbox is in the sun or shade depending on time I am there, etc.   I look for any possible tree branches that may be reaching too close to a box, if any trees are nearby.  Two boxes had ants move in, which I treated.  A bluebird couple found another nestbox I installed not far that was empty and moved in.   I believe it was the same couple in the box before those ants came around.  I look around the base of the pole to see what’s there, if anything of interest….pests or any claw prints from a feral cat or raccoon or even a possible sign of a snake.  I try to keep the materials around the base of the pole as dirt.  If the pole is in a mowed lawn, that is not possible, obviously.  I have no intentions in ruining a resident’s lawn who allows me to install a box.

The maintenance of a bluebird trail requires commitment and patience.  In my humble opinion, no matter how hard it can be sometimes to see failure and why that failure occurred, by keeping my commitment and monitoring the trail AS NEEDED despite my busy schedule can allow me to do so, the birds are FIRST, not my schedule.  The purpose of the trail is to help the birds succeed.  If I don’t monitor and do the maintenance to keep the boxes safe, clean, and habitable, the birds can fail in reproducing young and having successful “HELLO WORLD!” fledglings to care for as they learn to be adult birds and be on their own.   Keeping detailed trail notes is fun for me.  I enjoy it.  I keep my clipboard on my car seat and write my notes upon returning to the car.  I keep them on file from year to year, and it’s good education for me to go over how the years did prior to this one as comparisons.   Ants and a very heavy thatch/weed growth is a first for me.  Also first for me is blowfly infestations in first-brood nesters.  Thankfully, the larvae showed up late as the babies were about to fledge and not harmed.  Though weeds grow, I think the heavy rains, many of them, has told all those weeds to keep on coming!  Weeds can’t talk, but they sure read water.  Weeds love water and sun, but it seems more water that comes down, the faster they grow, like any plant.   Since I am in a rural community, many of my boxes can only be maintained and ground cover kept to a minimum by me.   We don’t want predators having easier access to a quick lunch to a bluebird nestbox that is built, installed, and monitored for the purpose to fledge native cavity-nesting birds, specifically the Eastern Bluebird.   A clean, slick conduit and predator guard is important.  If I allow unmonitored boxes, my time is wasted, and so are the nesting bluebirds.   It’s like playing a practical joke on the birds.  Thinking of it that way makes me realize my efforts are worth it.

I am pleased to report I do have repeat nesters in some of the same boxes, treated for future blowfly larvae in advance of hatchings; therefore, I am looking forward to hatchings for second brooders.   Females are incubating those eggs now.   The females are so sweet.   When I know I have incubating females, my trail visits are in the mid-afternoons when she is more likely to leave the nest to get a break from the box and find some food and fresh air.  One female looked at me, and I gently said hello and she flew off the nest.  I could take my mirror and do my egg count.  It gives me such pleasure to also inspect a pine needle nest or a grass nest occupied by an incubating female who seems happy with her box and confirm that the nest is clean and clear of parasites and is dry, too.  If a nest stays dry after rains, that is a good sign my nestbox is constructed properly!   Every year I monitor (and I still consider myself a NEW bluebirder!), I learn something new.  I hope this page helps share with others the importance of keeping an eye out on our bluebird boxes (to put it mildly) helps them succeed, and the rewards we monitors get back are great.  Though my trail is not a big one, it’s what I can consistently monitor.  I do not want to put more boxes up with a commitment to monitor them and keep statistics for the VBS and then fail doing so because it’s too much to do.

A quick note regarding my “two-hole mansion” test page and findings.   It was determined within the last two weeks that bluebirds and house sparrows are battling somewhat to nest in that box.  So far, the house sparrow is winning attempts to build there (and I continue to remove those materials).  The good news is the bluebird male is still attempting to get that box—and that’s what the test is about!   I will continue to remove the house sparrow nest materials to see if the male bluebird can win over that box.

Comments here always welcomed.   Please do so–I encourage you to do so.  (Spam never makes it to my site, thanks to WordPress which hosts my site.  Good job, WordPress!)  All comments come to me privately first and not posted without my review.  Your Email address remains private to me only and will never be displayed publicly on this site.  You can write to me through the comments section.  If you prefer NOT to have your question, inquiry, or comment posted on this site, just indicate so, and I will not post it.  However, by leaving your name and Email address, I can write back to you privately.  It also deters spammers!   Thank you for your time to read my website.  I appreciate the support.

I am seeking monitored boxes for stats to include to the VBS.   These stats go to the North American Bluebird Society, as well.  Please let me include your nestboxes.  Learn how rewarding bluebirding can be, even ONE nestbox.   Include your box (or sponsor one through the VBS!) in my trail stats for Virginia!  It’s fun and very rewarding.  I love to train!

~~~~~~~~~~~~~~~

This is an important post at this stage of my trail.  The latest as of June 3, 2010:

During first broods this nesting season, I had THREE  FIRSTS on my trail.

1.  Ants. First time on my trail.  I will use vaseline at the base of the pole and underneath the stovepipe guard for those locations I’ve found these little black ants (not fire ants).

2.  Blowfly larvae on FIRST broods–first ever on my trail–usually it’s on the second broods.   All bluebird babies fledged OK for first broods since the nestlings were older when the larvae first appeared.   I am using the organic Diatomaceous Earth (very fine powder) to puff inside the nesting material and underneath the nests to keep the larvae from climbing onto the nestlings at night.   I have my goggles, mask, and pest pistol to administer this powder.  See a previous post below on DE.   Someone asked me one time why the bluebirds don’t eat the larvae–it’s because they hide at the bottom and inside the nesting material by day while the parents feed the nestlings.  At night, when the parents aren’t entering the nestboxes to feed their nestlings (from dawn to dusk about 5 times per hour!) is when the larvae crawl up and latch onto them to feed on the nestlings’blood (like mosquitoes).  If these larvae aren’t removed or killed off, the nestlings will get anemic and cannot develop properly to fledge–most nestlings will die in the nest for lack of nutrition and muscle strength.  We monitors must keep this from happening in our nestboxes. We cannot control this in natural cavities for obvious reasons, but we CAN in our nestboxes, which is why a NESTBOX MUST NEVER BE INSTALLED AND THEN NOT MONITOR THOSE BOXES.   It is part of the responsibility of installing even one nestbox in our back yard.  Monitoring is not difficult but it does take training.  Monitoring has its huge rewards when we help the birds succeed.  Why do we want to set them up to fail?  (I certainly do not.)

3.  Ticks (on me!): I am prepared on next trail check with my camp hat, two tick sprays (one on skin and one for clothing (a non-deet spray made by Coleman), and will have to wear a light windbreaker, even on hot days,  in some areas of my trail to keep ticks off my arms and neck.  My last two trail visits, I found ticks on me….thankfully early before they latched into my skin.   We must be careful out there.

Good sites on ticks ( click to enter or cut and paste in browser):

http://www.canlyme.com/ticks.html

http://webpages.charter.net/balplanman/_MicPix/Ticks/Ticks.html

Some interesting additional trail notes as of June 3, 2010:

I have one box so far as of trail check on June 3 with a completed pine-needle nest and two laid eggs.  This weekend is my goal to administer the powder before the female is incubating the completed clutch of eggs.   By puffing or “poofing” small amounts of the DE inside the nesting material and at the bottom, it should not risk the female or nestlings any harm by the powder getting on them directly.

I believe the other nesters after first fledgings delayed building nests for second broods due to the large number of thunderstorms (only my theory from experience) in our area.  I think they are starting their second nests now, and I’ll be checking my trail more than once a week (about every 4 days if I can, weather permitting).

I do have my two-hole test site in past weeks with House Sparrows; however, I’m seeing some changes with a territorial battle between an unidentified brown bird (House Sparrow or House Wren) with a bluebird.   See my test site page for updates on that.

Only one other box has nesting House Wrens. I positively ID’s successfully 6 laid HOWR eggs in that box.  These birds, when nesting, are protected and therefore the nest must be left alone.  I doubt these birds will bother another box with bluebirds.

I do need to cut back some weedy growth on some of my poles in rural locations.

I have found more insect issues this year–I am attributing it to the amount of rains we’ve had.  Perhaps I am incorrect on that.   The only pest problem that is not as bad this year are paper wasps and mud dauber wasps–though they are here, they aren’t bothering my boxes as much this year.

INVITATION!   JOIN ME…PRESENTATION/WORKSHOP ON BLUEBIRDS!

Designed for beginners in bluebirding and how to use properly use nestboxes and monitor those nestboxes for success.

by Christine Boran

Thursday, May 27, 2010 – 7 PM

Location:  The Reynolds Homestead, Critz, VA

See May 2010 Newsletter, Page 2, below for information: http://www.reynoldshomestead.vt.edu/Newsletter.html

Directions/Map to the Reynolds Homestead: http://www.reynoldshomestead.vt.edu/map.html

May 29 — I was disappointed not to find second-brood nesters just yet.  We have had some strange weather lately–hard rains, thunderstorms, and flash flooding warnings.  Today was a break with some sun for my trail checks.  There ARE still two boxes I need to check but I ran out of time.  I’ll go back tomorrow to check those.  Some of the empty boxes from the first broods had the beginnings of small tiny black ants!  This is a “first” for me on my trail.  I treated the boxes, will return again sometime this Holiday weekend to make sure they are clean and dry and will apply vaseline at the bottom of the poles to deter the ants to crawl back up.

Filed under: Birds, Blogroll, Bluebird Trail, Bluebirding and Bluebirds, Bluebirds, Nature, Purple Martins, Random, Virginia Bluebirds ]]> http://woolwinehousebluebirdtrail.com/2010/06/03/bluebirds-arent-the-only-cavity-nesters-to-charm-us-how-about-those-purple-martins/feed/ 0 Woolwine House Bluebird Trail http://woolwinehousebluebirdtrail.com/2010/04/30/my-plan-combating-the-blowfly-problem-for-2010/ http://woolwinehousebluebirdtrail.com/2010/04/30/my-plan-combating-the-blowfly-problem-for-2010/#comments Fri, 30 Apr 2010 17:19:47 +0000 Woolwine House Bluebird Trail http://woolwinehousebluebirdtrail.com/?p=1631 ]]> You know the saying for many years, probably from a well-known homemaker magazine’s monthly column:

My Problem and How I Solved It!

I have ordered and received Diatomaceous  Earth.  (It took me a while to learn how to pronouce it.)  Here is info on this wonderful organic product that is going to help me combat the problem I’ve had in years past of the blowfly larvae attacking nestlings at night and thus causing anemia to those nestlings and potential death to them in the nestbox.  I am anticipating no more nest switchouts with this product!  I learned at the NABS conference last September 2009–thanks to Harry Schmeider and his presentation there–that if I use a few puffs of this organic powder inside a nest prior to nestlings hatching– that the larvae cannot survive and cause harm to the bluebird nestlings.   What I like most about this product is it is NOT a pesticide and is an all-natural product.  Here is a photo of what I have new in my trail tack box below.  My plan is to insert CAREFULLY this powder just prior to hatchlings.   One thing to watch on this is to make sure none of this powder gets into the nestlings eyes.  I think this is the safest way to administer this very fine powder.  I will still inspect the nestlings anyway during my trail checks to be sure they are developing normally. 

Fascinating reading–read here first to learn more:  http://www.ghorganics.com/DiatomaceousEarth.html

The tools! This is a 2-lb. bag and pistol. You can also just use a plastic mustard or ketchup container that has the tip. I like this pistol. I ordered an extender for it so I can use it in the corners of the house behind appliances--all organic!

You can see how fine this powder is and the pistol I’ll be using to carefully administer the right amount at the bottom of a nest and in the middle inside the nesting material.   The second and third broods, if I have those on my trail, are the nests where the blowflies lay their eggs in birds nests.   I am really anticipating an easier way to deal with the problem for this season and forthcoming seasons.   I still keep a few extra natural clean bluebird nests on hand for emergencies.   I always try to be prepared on trail checks. 

Text on the bag. I also received a more detailed pamphlet on usage of this organic DE.

The handsome fella above is doing his wing-waving dance to the female “aren’t I good-lookin’!   Be mine, be mine”!  By now the females have picked their mate for the first brood.  Nests are built, eggs are laid, and now those eggs are hatching on my trail as of April 27!   Both parents feed the nestlings.  Many times they remain mates for the whole breeding season and even family siblings from the first brood will help the parents feed the second brood! 

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Updated notes that are interesting along my trail are posted below.  See “Nestboxes 2010″ gray tabbed page  for individual notes on each nestbox.  This post will remain “sticky” so that it is always at the top of this site for quick reference and changes along my trail this season.  New posts will follow below this one, always with the latest update at the top.

April 29:  Hatchings of bluebirds have commenced on April 27 on my trail.  More occurred on April 28.  I expect more today, the 29th!

Pine needle nest at one of the boxes -- incubating female would not leave the eggs!

April 23, 2010:  On my trail check yesterday, two boxes could not be counted for final egg counts since incubating females would not leave the nest.  I will go back to those two boxes in late afternoon when I predict the females will be off the nest.   Egg count (with an estimate count included for those two boxes) are as follows for my small trail consisting of 16 bluebird nesting locations: 

FIRST BROOD for 2010:  30 eggs — 1 egg was dumped by a female bluebird in a one-day’s work partial nest and female did not return to the nest 1 week later.   The egg possibly may be infertile or abandoned.  That is theory only on my part.  I do not know why a female bluebird would lay one egg on a bare wood floor in a box with just a few pine needles circling the egg.  I will confirm the egg count in a few days at the two boxes that had incubating females that stayed on the nest when I opened the boxes.  See photos above trail notes here taken with my large SLR digital camera held in one hand while holding the box door open (April 22, 2010).

This is the other box where Mrs. Blue decided she was not afraid of me, even when I opened the box. She is protecting her eggs with her life! I managed to hold the door and mirror with my left hand and my heavy SLR digital camera with my right to catch this picture. She's even prettier when she's sitting on the nest. I was amazed at how blue she looked. This is another pine needle nest, which surprised me considering it's mostly field grasses and pastureland near this box. I believe pine needles are #1 choice of nesting material for the bluebird, if they can get them. Notice she is not looking at me in fear. This is how incubating females can get killed by attacking House Sparrows.

 April 21, 2010:  Tomorrow I will be back on my weekly box checks.  We have only bluebirds nesting with eggs.  I should get the first brood egg counts in total tomorrow.  I have no other cavity nesters so far, no Carolina Chickadees, no House Wrens.  Only one box, the Test Two-Hole Mansion test site, has continuous and relentless, never-giving-up, House Sparrows wanting to nest in that box.  I am removing the nests (no trapping) as part of the test.  See my Two-Hole Test page for more information.   I will be back on on Friday to update my trail notes here.  I am adding a picture of a redesigned wren house that is doing extremely well for bluebirds.  It is posted below this post (two photos of the altered wren house)!  This is not a standard NABS or VBS approved box.  It is a built-at-home box that bluebirds really liked for the past three years and have bred and fledged young successfully.  They roost in the box in the winter.   Bluebirds are “opportunists” and will use what works!   Who can argue against a bluebird?  

April 12, 2010:   OK, we’re having bluebirds nesting, eggs are being laid….we are on a roll now!   I’m so exited!  A detailed update will be posted on or around Saturday, April 17th, when I have more details of nesting bluebirds on the Woolwine House Bluebird Trail.  By then, I should have some first nest egg counts.  I have revised the photos today on the gray tabbed page titled “Nestboxes 2010″.  

April 8, 2010:   I am pleased to report the trail has bluebird nests….some with perfect cups.  A week ago, April 1, no eggs were laid yet.   I expect to see eggs later today when I check my trail.   NOTE:  This site is presently in update mode.  Please check back in a few days as I update the new photos and text on The Nestboxes gray tabbed page.   Some of the box locations have changed.  The new header photo above is endearing to me as I anticipate the first baby bluebirds this season taking on their new life with wings.  This is always the most exciting part of bluebirding for me…the first egg laid, the first hatching, and the first successful fledging of nestlings.  When monitors keep trail notes, it makes it even more fun.  Mrs. Bluebird above is feeding her baby in the trees and will continue to do so for about 4 weeks after her nestlings fledge.  Once the nestlings are “outside the box”, they are no longer nestlings but then called fledglings.   They remain a camoflage grayish-blue with spots until they develop their adult plumage.  They are still very vulnerable to predators until they attain adulthood later.

As I watch the weather report, there is a possibility in my area for a cold snap coming.  This can be dangerous to chicks, but if eggs have not hatched, I’ve seen Mrs. Bluebird delay incubation until she feels comfortable to continue the incubation in warmer weather.  She just seems to know the best safety for her hatchlings and does what she can to make it work!   Weather makes a big difference in results.

March 11, 2010:  The trail results have begun this week!   The two-hole test site had a partial HOSP nest built and nest was removed on March 10.    Other boxes will be checked again, predator guards secured, and boxes soaped to deter wasps.   This was a problem on the trail last year during sudden warm temperature surges.   Soaping is easy–I use a pastry brush to “paint” an Ivory soap paste I make with a small amount of water.  This is primarily added to the surfaces on the inside of the box on the box walls and near ceiling. 

February 23, 2010–Sunny today and 45 degrees–more snow coming tomorrow!    The bluebird males have been sighted in our area in the past two weeks.   This is about two weeks later than the past four years that I’ve seen in my own bluebirding observations (usually around February 1st in SW Virginia).  The males are enjoying the sun and warmer weather, establishing their territory, and looking for eventual nesting sites and mates.   This is the time of year food sources are challenging.  It will be interesting when the first observation of attempted nest building will take place in my boxes this Spring due to the severe winter snows we’ve had in our area.   I keep dates of all activity for my permanent notes.  We still have snow on the ground; however, it’s starting to melt now.  I’m seeing grass and pine mulch again.  I’m hearing new bird songs out the windows.  My nestboxes will be modified in some locations for this year–I hope within the next two weeks or so as the ground softens up.   I usually have this completed by the end of January each year.  We’ve been snowed in at home a few times this winter.  I am really looking forward to seeing my first bluebird egg this year!   I hope some of our resident bluebirds flew down to NC for food sources this past winter.   This has been the harshest winter our county has seen for many years; certainly the harshest I’ve seen since I moved here in early 2006.  I plan to visit my winterized boxes on my trail early next week and see what birds have been hopefully roosting in them and look to see what repairs need to be done to the boxes and baffles.   Some of my stovepipe baffles have fallen down in some high winds.   I will leave the ventilation “plugs” in until sometime after the first eggs are laid, depending on the temperatures.

This site will be updated again sometime in late March for the 2010 breeding season after I have some activity to report.    

Happy bluebirding!

We have hatchlings on the WHBBT!   On my trail check dated April 27, new nestlings have emerged.   I checked again on April 28, and more hatchlings have come into the world.  I am waiting for 4 more locations to hatch bluebirds.  Here is a photo I took from one of my boxes on April 28.  I had to use a mirror for this picture since my boxes do not open at the top.  Note:  I only have bluebirds nesting in these boxes — no Carolina Chickadees yet.   The Two-Hole Test Site still has House Sparrows attempting to nest there.  So far at 16 locations, 3 have hatched bluebirds.  I am still waiting for 4 more to hatch any day!

UPDATE:  APRIL 29th:  I am still waiting for two boxes to hatch.

Photo taken April 28 using a large mirror. One must be quick and careful photographing nestlings so as not to stress out the parents too much. After a few trail checks, the bluebirds come to trust careful monitors more.

Below are the larger pictures I posted below of two boxes that had incubating females that would not leave their nests on my box checks on Thursday, April 22.  

She is telling me, "I'm not leaving my eggs!" She graciously allowed me to take this picture, a bit awkwardly, I admit, but I managed to get this as best as I could.

This lady is not leaving her eggs -- no fear at all. I took this photo to show how the pine needles are used for the inital nest. Before the eggs are laid, it's amazing to see hwo perfect the deep cup is made in the center before the eggs are laid.

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This box, along my trail, is a REDESIGN (alteration) of a hanging wren house. It was built and hung; instead of wrens using it, bluebirds moved in. The house was then changed by removing the perch and resizing the hole to 1.5 inches. This box consistently does well every year at least two broods. It is hung on a front porch in perfect bluebird habitat. A plum tree and a high wire are not far from the porch. Because it is hung like this, no ground predator guard is needed. There have been no avian predators at this box. This box is monitored by watching activities, including nest building, incubation, and fledgings. It cannot be monitored weekly as the box has to be taken down and opened with a screwdriver. After each fledging, however, the box is cleaned up and hung up again. It was reported to me this box had winter-roosting bluebirds, as well! Cavity size is 6.5x 6.5 inches. This box has been approved by the VBS to me to include what stats I can on the WHBBT. In this circumstance, my philosophy is if the bluebirds like it and are safe and successful…bring it on! I would like to hang one of these but make it a standard rectangular style box but hung from our front porch. A Black Rat Snake, if inclined, could still get to this box, but I’ve been told so far in three years, that has not happened to this box.  Carl, who helped me build my nestboxes for the WHBBT built and altered this wren house.  Good job, Carl!  …. And many thanks to Carl for sharing this on my site!