I don't know if this helps, but this is a little hen I got from an auction and she's missing most of her toes...only one has a toenail. I don't know what happened to her toes...I doubt it was frostbite since I'm in FL. The previous owner said she roosts fine (I don't know yet b/c she's been broody since I got her, which is also why she's dirty and missing breast feathers...normally I would never let my chickens get this dirty!). The only thing is that I put her on wire to begin with and she degloved one of her back nubs by getting it caught in the wire (the scabby looking one) trying to fight w/ another hen, so since then I've had her on hay and antibiotics and she's doing better.