How can you tell boys from girls in Cochin breeds, besides the obvious crowing or egg laying? I have Blue and Mottled chicks that are 6 weeks old. Of my blue ones, 2 are more black than blue and haven't completely feathered out yet, but have larger combs, and I have 2 blue, that are fully feathered out with smaller combs. Of my mottled, all of them still have some of their downy feathers, and have only recently began to get their adult feathers, but 2 have large combs, and 2 don't. I can't keep roosters, so would like to get them narrowed down soon, so I don't keep feeding them! I will try to post pictures when I get a chance, but just want some input on easy ways to tell. It seems as if the obvious larger combs would be roosters, but I want to be completely sure! Thanks!