I was lucky enough to witness early on... one of my hens paying way too much attention to Roos feet. Then I noticed red on her beak and on his foot... not good. I brought him in and washed off his feet and put him in isolation. then promptly consulted BYC forum which said that maybe to coat with blue-coat would help so I've ordered it and will have to wait until it arrives. I have a momma chicken raising some chicks right now. during the day they forage with the others then at night they have their own small house.... that is where I have him so I will have to think of something else to do with him by tonight... or maybe momma and babies will go in with the girls tonight. Oy.