Hi, I have a tiny little Bantam white hen who is having no symptoms of anything. She is always peckish (in all senses), so no appetite loss. She is active, does not favour a foot. Still lays, has no pain behaviours. I have washed and soaked her foot, the very large black mass has lost its crusty top and is now as smooth as the callouses on my toes. I put a topical anti-inflammatory on the red places on top of the foot and they are fine. The mass is big and I don't want to cause a problem by trying to remove it if it is not a problem.