They are about a month old, I got them with a huge batch of full size and bantams, I thought they were wellsummers until today, when I saw the chipmunk head next to one of these. Any help would be much appreciated. They are Pullets and about 6 weeks old. The first pic is grey with a white ring around the neck it also had a few extra feathers coming off the tail. The last two are the same bird. It seems to have an undercoat of red with grey overcoat.