THIRD BROODS: HOPING FOR BLOWFLY DETERRENCE AND SUCCESS IN FLEDGING.


A man’s interest in a single bluebird is worth more than a complete but dry list of the fauna and flora of a town.

– Letter, November 22, 1858, from Henry D. Thoreau to Daniel Ricketson, in The Writings of Henry David Thoreau, 1906

Here is another 3rd brood–3 days old.  Presently on the trail, I have four nestings on third broods!  This bunch appeared a tad weak and hot yesterday.  Growth size observed the same for all three nestlings.  Both parent birds are very active in feedings.  Good!  Since only three here, there is more food for all.  Will watch them closely–about every 2-3 days of “looking in” on them.  Worried about another ” macho” bunch of blowfly larvae–have treated the nest for deterrence of larvae surviving while hidden inside the nest during the day.  I have two clean unused grass nests saved similar to this one.  I will use one for a possible emergency nest switch-out on next visit tomorrow.  I ONLY micro-manage nestboxes where problems may be evident and only then.  I let nature provide as much as I think will provide for the birds and intervene only when necessary.  Sometimes it’s a tough call because time is of the essence in some circumstances.   Photo taken July 27, 2012.

The heat is hard on our cavity-nesters. These three nestlings appear to be holding their own so far. The parent birds are active in caring for them. I am hoping my blowfly deterrence will work on these little guys. The more bluebirds, the better! How can we not wish them the best? It’s all part of the monitoring process. It’s worth all the work and time helping bluebirds succeed. The more bluebirds fledge, the more chances we will have them return to the same nestbox where they were born. The average fledgling generally has a 50% survival rate within the first year of life in the world. Therefore, we can never have enough bluebirds!  Never.

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