Well, I don't really know Cochins, having only had one bantam, but just going on pink combs, I think you have at least two males, if not three. The middle one in the last picture is the only one I think might be a pullet, but I could be wrong. With your number of hens, you could keep two males, though.
, I am still learning but from looking at the photos I would have guessed they were all hens. What about the one in the photo I posted, what do you think? (It's a bantam)
