One of my Dark Cornish hens (Dark Diva) is not pooping. It started last week with less poop which progressed to diarrhea which stopped altogether this morning. She seemed to be acting normal so I didn't get worried until yesterday but today when I let the girls out of the coop she didn't go for the food like the others. Her crop area seems generally swollen (not just pooching out like it normally does when she's eating during the day. (like in the picture below). Can anyone help?