Liz that’s a great question that I’ve wondered about myself. Hope
answers/guesses get posted here. Starlings aren’t even related.
Linda Orkin
Ithaca
> On Mar 13, 2021, at 11:58 AM, Liz Brown wrote:
>
>
> Here's something I wonder about every spring, when the big mixed flocks of
> grackles, blackbirds, cowbirds, and starlings show up:
>
> Why do all our black passerines (with the exception of crows and ravens) hang
> out together? There aren't any small black birds who DON'T join these big
> flocks, are there?
> Or, to flip the question around - why are these birds all black?
>
> -Liz
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