I recently joined BYC, but have enjoyed reading the info for several years now. I have had chickens off and on all my life. About a year ago, I received a start up flock from my daughter, of 7 birds, including 2 roosters. I didn’t know which one I would cull out (harvest) until recently, the flock kicked out one of them. He seemed healthy but when I plucked and processed him I found a swollen area on his right hip. When I cut into the area, it was black and gelatinous, not like any infection I’ve ever seen. Any ideas what it could have been? I disposed of him in my outside wood furnace, to be on the safe side.