I went out to check on my chickens today and I noticed that one of my chickens had blood on her feet. I then looked and noticed blood ALL over an egg. My Barred Rock, Anika was bleeding from her neck. She looks to have some feathers that have been pulled out and was probably pecked there and it started bleeding. She has blood all over. We have all hens. My Ameracauna is known for pecking my chickens. She pecked my two black chickens necks bare. What do I do?