These are the birds I'm a little suspicious of. They are all 8 weeks old.
Silver lace wyandotte
Olive egger (marans x EE)
In this one you can compare the feathers of two of them. The one in question is still in front. The feathers seem pointy?
GLW x partridge Cochin
How old? Also more of the BO body would be nice, but looks like my hen. I'd guess the rock is a boy bc it's much lighter than my pullets but I'm not sure.
I'm trying to figure these guys out, maybe you can help. They are Marans over EE. 2 have barely any comb to speak of. 2 have combs that are growing and tail feathers that droop down. Are they Roos?