Okay, this is probably going to be the longest post ever, but here we go. This past summer we had to put down a chicken named Goldie. Her symptoms could basically fit nearly every common chicken disease. We had baby chicks, but not in the coop. Goldie (roughly 5yr. old hen): -lethargy -severe weight loss -refusal to eat or drink -gave up on life, if another chicken ran her over she'd just lay there -no egg-laying -crop swollen but no foul smell -would huddle up with tail drooping towards ground She was the only one who got sick. We had to put down another hen at the same time, but she had a prolapsed vent, so I didn't think it was related. Then, several months later we had the young pullets in with the older chickens. Now, over the past couple months, we have lost two more birds and have more sick. (We lost a few baby chicks, but they were all unrelated cases, the first ones got too cold, and the last one got suffocated by the others.) The one to die after Goldie was a three year old hen. 3 yr old hen: -same symptoms as Goldie -found her dead one night, one leg behind her, neck stretched out, spot of blood by vent Then a couple weeks later... 3 yr old Brahma pullet: -same symptoms as above birds, even died in the exact same spot and same way as the other 3 yr old. -this time after her death, I inspected her before disposing of her. Her abdomen around her vent was extremely swollen, it looked like someone had yanked her tail and there was frozen blood all around it, and her two hip bones were nearly poking out of her skin. Now, I have a few more sick, all displaying the same symptoms as Goldie, except at this point they're still eating, however I have a 3yr old rooster acting sick, a 5yr old hen who also keeps kicking one of her legs back, and one of my new pullets dripping mucus out of her mouth. We also have five ducks, and I was worried that they were causing disease, they live in the same pen, but a different house, and I recently switched from a fountain waterer to a nipple waterer. Sorry for the long post, but I have no idea what is going on. Perhaps they're all separate cases and I just got the bad luck of having them all at once.If you want any more info, ask and I'll see what I can do. I would really appreciate any ideas.