WOOLWINE HOUSE BLUEBIRD TRAIL

Female House Sparrow.

The English House Sparrow (HOSP) is one of two birds in North America that are non-native and not protected by Federal Law.  The other bird is the European Starling (EUST).  Both species of birds were introduced to our continent and remain today predators to our native birds and are territorial, aggressive, and take cavities away from our native nesters, including Bluebirds, Tree Swallows, Chickadees, and others.  The House Sparrow attacks our native species, including incubating females and their eggs, nestlings, and will kill and build a nest over the corpses of our native species.  The 1.5″ entry hole on our man-made Eastern Bluebird nestboxes keeps the larger birds out, such as the European Starling, but the House Sparrow can access our nestboxes to cause havoc.   Given the widespread problems caused by House Sparrows, the North American Bluebird Society (NABS) advises that it is the responsibility of every nest box trail operator to ensure that no House Sparrows breed and fledge from their boxes. It is better to have no nest box than to have one which fledges sparrows.    The non-native (English) House Sparrow is the biggest threat to the survival of our native bluebirds.    See my Tab from the main page of this site regarding the 2-Hole Test regarding House Sparrows and Bluebirds fighting over nestbox territory.

Male House Sparrow--much easier to ID with the dark markings than the female.

See this YouTube video online called House Sparrow Mini-Documentary (in HD).  Hopefully, this video will  help you ID these birds seeing them in video action with their song and behavior at a feeder–click on link:     http://www.youtube.com/watch?v=umyHo31BLbQ

  When HOSP attack (WARNING-GRAPHIC):   This is from the Sialis.org site:   http://www.sialis.org/hospattacks.htm        

"This Place Is For The Birds!"..... Bluebirds, that is, not House Sparrows! We have this up to welcome our visitors!

Please Help Bluebirds and Other Native Birds Survive and Thrive:  A House Sparrow Advisory    

 Dear Property Owner,

 If you have a birdhouse in your yard, your good intentions in attempting to provide birds with a place to nest should be applauded. However, many nature lovers don’t realize that by allowing a birdhouse to stand unmanaged, they are indirectly harming the very birds the house was meant to benefit, by providing a breeding ground for the worst enemy of bluebirds – the House Sparrow.

 The once common bluebird underwent a dramatic decline during the 1900’s. A major cause was the introduction of the house (English) sparrow (Passer domesticus). The avian equivalent of pests like rats, gypsy moths and crabgrass, House Sparrow populations exploded. They are harmful to native species such as Bluebirds, Purple Martins, Chickadees, and Tree Swallows, making it virtually impossible for them to successfully nest. (If you’re not sure what a House Sparrow looks like, they can often be seen in the garden section of a Home Depot, or around fast food restaurants.)

 House Sparrows are persistent, aggressive and destructive predators. They may destroy eggs and nestlings; and kill adult birds caught inside the box, sometimes building their own nest on top of the corpse. House Sparrows will not only prevent native birds from nesting in your birdhouse, but they will also breed there. One pair of House Sparrows could theoretically multiply into more than a thousand birds over a five year period. Soon House Sparrows take over all available boxes. It is better to have no box at all than to allow House Sparrows to reproduce in one.

Bluebirds rely on pre-existing nest sites like nestboxes. Please help native bird populations rebound in our area by taking steps to keep House Sparrows and European Starlings (another aggressive bird that was introduced) from breeding in any birdhouses on your property.

 Because House Sparrows and starlings are not native, and are considered nuisance species, they are not protected by federal law. House Sparrow nests, eggs, young, and adults may be legally removed or destroyed. If you are not willing or are unable to do this, please consider taking the nestbox down altogether. If you want to leave the house up as a decoration, but don’t have the time or desire to control this predator, please either plug the entrance holes, use a “fake” painted hole on decorative boxes, or remove the birdhouse floor.

One person indiscriminately putting out bird seed can also radically change neighborhood wildlife. Please do not feed birds bread, or seed that contains a lot of millet or cracked corn, as this attracts House Sparrows. Thistle, safflower, and black oil sunflower seeds are enjoyed by many native birds, but are not preferred by House Sparrows. Dumping food on the ground can attract rats.

 If you would like more information on how to attract native birds or manage House Sparrows, please contact Christine at 703.919.4302 or see http://www.sialis.org or http://www.virginiabluebirds.org/predatorspests.html.  Thank you so much for helping reduce the population of House Sparrows and starlings, and thereby enabling native birds to survive and thrive.       

                   Rev.0.4, 06/09/07.      Eastern Bluebird photo by Wendell Long.

This page and photo taken from the www.Sialis.org site.

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