I have pictures, and they are gross - but not as bad as the smell. This bird... I get teased about saving a rooster. I like him. He started with scaly leg mites when I got him from a friend. His legs were SUPER scaled up, and tons of the junk started falling off as we treated. Once that was gone, though, a cyst looking thing on his left leg started to...spread. It looked like you could pop it - and I tried to lance it with a sharp needle. After soaking it. The rooster didn't flinch, btw. Slathered him in Bacitracin and put him back in his own run, alone, as he has been since this started. Over the last month the growth has compounded, with older stuff hardening into kind of a crust, but harder. I have pictures here. Tonight I held him and poked around. It seemed wholly like dead skin. Black in color. Part of it peeled away to reveal a cavity inside slimed with thick pus. I mean this is really gross. AND it smells, to boot. I messed with it for a while longer, then slathered it again and off he went to bed. What the heck could this be? He's lame, btw, almost totally on that leg. Otherwise seems fine. Could it be a result of the really terrible leg mites he came to me with? He's also been on an oral antibiotic, really to no avail, he's off it now.