Turns out one of my hens had gotten frostbitten toes at some point. Now, it is far too late to really do much. The damaged afters are black, hard, and dry. I sprayed blue kote on her feet, but feel terrible that I didn't notice it until now. I checked everybody else, no other chicken has signs of frostbite.
I noticed today she was high stepping. So when I picked her up, I saw that each foot had already lost a claw. One very recently, like today. The damage was obvious on the other toes, too.
The tissue is definitely dead. No blood when I trimmed the claw on the rock hard toes. This foot is worse.
The damage isn't quite so far up each toe on this foot.
She laid here for me while the blue kote dried.
