Hmm, in my opinion it doesn't look like SLM to me.Is it just me, or does this chicken look like it could stand to be treated for scaly leg mites? Vaseline (petroleum jelly) or cocoa butter smeared on her legs will suffocate the mites and kill them. Treat all the chickens that live together, they're contagious. Treat for several days. Easiest to treat at night while roosting. Get a headlamp, they're cheap. If you get one with a red light option you'll hardly disturb the chickens at all.
They only affect the chickens legs.Oh no, do those mites also go all over the body or just in the scales?