So, I had my second, and more serious, case of bumblefoot in one of my Orpies. One foot had a big scab on the pad, but mostly unattached to the skin, so it was fairly easy to pull off after soaking. The other foot had a dark scab between her toes which was hard to get to, and a protruding lump on the top of her foot. I got my courage up, assembled my surgical instruments, and with hubby holding the bird, started digging. I discovered that the scab seemed more like dirt, and as I cleaned that out, I could see the plug. I pushed on the plug from the top of the foot, and out it came from the bottom. It was dark and more of the consistency of a hard dirt clod or hard manure. The skin wasn't even broken. What a relief! Is this what is referred to as manure foot?