I have 4 Pekins that are 5 months old. We recently started letting them free from our backyard pen now that our human pool is covered, so they can roam the backyard. Part of it is cement which is probably the culprit and we will take necessary precautions but I noticed that the pads of their feet are puffy along the 3 bones (?) of their feet. Is this bumblefoot? It's not discolored, maybe a little pale but not black or anything. If it's bumblefoot... what do I do??? HELP. please.