I am new to chickens. I have a 1 1/2 month old RIR that has some weird stuff going on. It has thick feathers growing off its legs and has an extra toe on each foot. The extra toes are part of one there already. The neck has thick feathers on it also and has feathers sticking straight out from the ears. Very strange looking! It is acting normal, seems to be eating and drinking normal. Do I Worry??