I have a sebright cockerel (looks just like the photo of the day) who has a problem with one of his feet. I noticed him limping yesterday after being healthy and well. He has sore cracks underfoot where skin folds (same location if we looked at our palm where rings sit) and hard dry skin on the sole of same foot. Is this a sign of any condition? I have cleaned his foot, and put some vaseline on it. Does anyone have any experience of this and can give me advice? I am prett sure it is not bumble foot, as i have had turkeys with that and treated them fine for it. not seen this before. other foot is fine.