The Boise Eyasses Are Growing Quickly!

Boise Falcons - 1 August Report



The Boise eyasses are really looking good. They are putting on weight and are getting much larger. Here is the latest information from the Peregrine Fund on the development of the chicks. Enjoy the read and please VOTE. Thanks.


“The chicks can now stay warm on their own and don’t need to be brooded. Besides, they are too big to fit under the adults! Although the chicks appear to be alone at times, at least one adult is close by, out of camera range but ready to spring into action at any threat. The adults have a lot of time and energy invested in their offspring, and they are not likely to abandon or neglect them.

What happens if one of the adults is hurt or dies? Could the other one raise these demanding youngsters alone?

If something happens during incubation, the eggs usually have to be abandoned so the adult can survive. Now that they are hatched, it would be possible to raise the chicks solo, but it would not be easy. These chicks have the best chance to survive if both parents are present to provide enough food, protect them from predators, and help them become independent.” [30 May 2013 The Peregrine Fund]



  1. Thank you for all of your work!

    I’ve become something of the resident “expert” on the falcons because I throw out bits of information that I’ve read on your blog. But recently a coworker asked a couple of questions to which I can’t find the answer: Why is there only one nesting pair in Boise? And why haven’t any of the offspring come back to town?

    My guess is that it has to do with territory size, but I can’t find a conclusive answer. Can you shed some light?



    1. Thank-You Shannon. Actually, the Boise falcons have returned in past years. This past winter, at least one of the 2012 “crop” of new falcons, if not two, were spotted all winter long. Whether or not the breeding pair that we see today is one of those, it is hard to tell because they were not banded last season. But it is doubtful that the two adults this year are “resident”. At least one of them is banded. Keep watching.


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