Can birds tell a male just-hatched chick from a female? I don't know that I've heard of that in any bird. I guess I don't even know how you could test for that

Can birds tell a male just-hatched chick from a female? I don't know that I've heard of that in any bird. I guess I don't even know how you could test for that. I can ID a typical mature rooster from across the yard. It's the babies that are hard. Crap, I can't tell a human baby's gender just from the face. The secondary sex characteristics show up closer to puberty pretty much by definition.