In my first attempt at hatching eggs, I managed to hatch out one chick (more may hatch soon, but I'm doubtful). I was so excited until I saw he had light feathering on his legs His parents are purebred Bantam Plymouth Rocks, I only have one rooster and I'm positive that the eggs was from one of my Bantam Rock hens. What could have happened? Plymouth Rocks should not have feathered legs! The chick is blue with a single comb, like a Rock should be, but his legs! Can anyone explain this to me? I am going to cull him regardless, but I would like to know why this happened. I want to sell hating eggs and chicks in the future, but wouldn't want to sell them with the possibility mutation. I will post pics tomorrow so you guys can have a better look. Also, one of my Rock hens hatched out 3 of her own eggs all BBS Bantam Plymouth Rocks and all with clean legs. Unfortunately, none made it, but I'm hoping that this chick was just a fluke.