Sorry for the poor photography, it's hard to use an iPhone and hold a wiggly chick. The chick is nearly six weeks old. Doesn't act weird or anything but see the photos. There's a bump on the front of the breast (crop?) and the underside has no feathers at all. It is one of three Ameracaunas. The other two do not have the same problem. I'm new to chicks so I don't know if the lump is the crop or not but it's soft and pliable.