We have 2 chickens we are unsure of their sex. They are about 5 months old and look different than the others. the first one has a rather large comb. The second the comb goes back further into the head and has some tail feathers that are curling up. We were told that all of our chickens were pullets... im not so sure.. The first 2 pics are for the chicken that has this very large comb. The second 2 are the from the other..