Is that the black chicken in your third picture on the top row that you posted earlier? I still say that it has a curved down tail of a rooster developing.Unfortunately it happens outside of the coop as well and she seeks me out I usually don’t approach my hens I allow them to come to me. The only person she doesn’t do it too funny enough is my dad who she barely sees. All of my siblings and anyone near her she attacks my dad for some reason she just will not mess with (he’s pretty scary to be fair lol)