I'm taking just a guess here but I think 2 out of the 3 are roosters.I'm pretty sure the black one is a roo. His legs are HUGE and he has a very pronounced comb for 8-9 weeks. He also has that roo face (you know the glare lol). Then on the 2 brown ones, I believe the one with the larger comb is a boy as well. His comb is pretty well developed for 8 weeks and maybe it's just me, but I swear I see saddle feathers already. I could be completely wrong though!!! Hopefully someone else will chime in.