This is my Buff Orpington that is about three months old. It was bought as a female. What gender do you experts think she might be? What do you look at to tell? She is a little different than the other three I have in the fact that her comb is larger and deeper red. Plus, she has been something like crowing for the past three weeks. I appreciate any expert thoughts.
That's a cockerel; as you mentioned, the large red comb and wattles gives it away. The thick legs, and development of saddle feathers is a sign as well.