Girdy is our 13 week old pullet. She wakes up every morning and her crop looks normal, and as the day goes on and she eats more, it swells up and ends up looking like this. Anyone have any idea what's going on?? It also looks like a few feathers are missing in the area that's enlarged. When she goes to sleep overnight it seems like the swelling goes down, and then the cycle repeats the next day. Thanks for any help!!!