My Marans hen has grape-sized blisters between her toes. She's not favoring that leg at all. We have her isolated in a wire cage but I'm going to work on padding the floor as soon as I send this off. It looks like she might have bumblefoot. All of the hens in that pen are looking the worse for wear (combination of randy roos and a duck family that has moved in). Dh is building a larger coop and too many birds are spending the night in too small a space. I can hear the drill as I type so hopefully they can be moved today. In the meantime - the blisters on the feet look just like that - blisters. More water-filled than pus. I know what I'm planning to do but thought I'd not jump into it and get some advice from others. I'll post a pic of the foot ASAP.