I’ve never had that experience with males. Mine do pull out a few feathers on their necks from breeding but otherwise they have never been so brutal. I’m sorry that you had that experience :( I think he was just a bad apple
They sound female to me as well. The white seems to me a pekin and I have something simalar to the two little black ducks. Let me know what you think they are when you see them. I still can’t figure out the breed of mine lol.