I'm actually not sure what to call it. I had a Naked Neck hen who, several years ago, had a nasty combination of scaley leg mites and frost bite, and both of her feet fell off. She prospered, so I made adjustments for her (not to mention she was my personal favorite.) Over the years, she grew a "toe". it grew to almost twice that size by the time she died. I've had chickens for a long time, and never seen anything like this. Just wondering if anyone else had?