I got a free chicken when I placed an order said it was their choice. So it was a yellow chick with feathered feet and 5 toes...now it is turning dark brown and black. Taking much longer to feather out then the rest like he/she is half feather and the rest have been fully feathered for a couple weeks. I looked a favorelles and they are cream and he is not. I have never had these kind of chickens before so need some help of what it could be?