Aprox 1 year old Wyandotte hen, eating,drinking, acting normal. As I was giving her treats tonight I noticed her chest seemed saggy. When I picked her up I found that it is a fluid filled mass on her chest, about the size of a softball. I turned her on her side to get a better look and puss-like fluid poured out of her mouth. She is having no trouble breathing. I called my vet and she said it may be that her crop has become impacted and is abcessing. I will be taking her to work with me in the morning (I am an RVT, but at a small animal practice) to see what we can do for her. Right now I have her seperated from my 3 other hens. They have pine (?) shaving bedding in their coop and grass and hay in their pen. They are fed layer pellets and treats. I'm just looking to see if anyone else has had this happen before, and what it might be? I'm worried about her...I don't want to see her suffer!