I have six bbred OEG bantys and a mystery white bantam x hen. Three of the banty's (one momma, two chicks) are of "old stock"-ie, came with my house. The other three I bought as chicks and raised. The white hen was in with two HUGE RIR who were pecking her feet until they bled. The three "old stock" bantys have crusty legs. The White hen also has crusty legs, but I'm not sure they aren't scars from her mistreatment. BUT! The "new stock" has beautiful, clean, soft smooth legs. What gives? Why would half the chickens have scaly legs and half not? Could this be a genetic thing, or some weird mite infestation? And how do I treat it? I've read everything on this board from olive oil to WD-40 to ivermectin. Thanks!