I'm thinking same as everyone else, black one=roo and white one could go either wayThese are 3 week old naked necks. The black/brown chick I am pretty sure is a roo. Comb is a bit pink and pretty big for 3 weeks. The frizzle...well, I am afraid it is a roo too but I want a frizzle pullet so badly I am trying to convince myself otherwise lol...so far mostly yellow comb with maybe a hint of pink if you catch it right in the sunlight. I have a 3rd naked neck with no comb as of yet and I am sure of that one. Thoughts? This is my first foray into Naked necks so I don't know how big of a comb the ladies may get and such...