I have 5 Marans I hatched (naturally w/my luck, 3 are roos) out of bloodlines of Fugate, Ackroyd, Fitch Ripley---are one of these lines more prone to produce feather-legs? because one of my young roos is noticeably taller than the rest & has feather legs--I think he is going to be the keeper. He is the only one w/feather legs.