Vermont Birds <[log in to unmask]> writes:
>Is the tree exposed? If so it could be wind related. Also keep an eye
>for Brown-Headed Cowbirds, as they may have laid an egg in the nest and
>they young bird in question is throwing his unborn siblings out. There
Thanks for the feedback, Will. We do have brown-headed cowbirds around
and I wondered if they might be the culprit. The nest tree is a cedar and
blown about by the wind quite a bit so that might be the problem, too.