I'm beginning to worry that my Charlotte might be a cockerel. What do you think? She's an Ameraucana (possibly a mix--I bought mine from a woman with a backyard flock who may have had a little mix-up when putting hens with roosters), about 7 weeks old. I've noticed that her comb is redder and more pronounced than my other two chicks, but I thought that might be breed differences. But after doing some reading on the forums here, I'm beginning to wonder--I've also noticed that the feathers on her back haven't filled in quite as much as the other two, and she's always been a little bigger (but again, I thought that might be breed differences, since the other two are a Black Sex Link and a Golden-Laced Wyandotte/Barred Rock mix, or because she might have been a day or so older than the other two). I've posted 3 photos below. What do you think? I'm keeping my fingers crossed for a pullet, since I can't have roosters. Thanks for any help!