So I’m new to owning chickens. I was told I have 4 hens. I was told they are about 3ish months. However, two of them keep “fighting”. I assumed they were asserting dominance or something but when I showed a video to a friend she asked if the Buff Orpington was a rooster (she’s the one that tends to pick on the others). The two that “bicker” are bigger and have more pronounced wattles. The barred rock is also lighter than the smaller barred rock. I guess I want to make sure that they are in fact hens. I can’t get great pictures, but here’s what I have. Thanks in advance for any help!!