@YardBirdMom The Cuckoo Marans is a boy, you can tell by his color alone. Boys are more.....white striped on black while girls are black striped on white, it makes the boys look way lighter colored. That's the same in Barred Rocks also. I think Nip Nip is a girl or she'd be crowing by now and have shiny pointy feathers around the base of her neck and along the sides of her butt (her saddle feathers). I could be wrong though.
I don't have any experience in Buff Rocks but i know the Barred Rocks I caponized when I was taught how had bright red combs, they were 6 wks old. Their combs were considerably redder than any of the Buffs in your pictures.
So basically I wasn't much help and the only one i know for sure is a boy is the Marans lol Boys also stand up real tall and don't slink off when something grabs their attention like girls tend to do. And boys do a ton more chest bumping than girls do.
I don't have any experience in Buff Rocks but i know the Barred Rocks I caponized when I was taught how had bright red combs, they were 6 wks old. Their combs were considerably redder than any of the Buffs in your pictures.
So basically I wasn't much help and the only one i know for sure is a boy is the Marans lol Boys also stand up real tall and don't slink off when something grabs their attention like girls tend to do. And boys do a ton more chest bumping than girls do.