Hello all, I have a chicken that was removed two days ago because we noticed she was lethargic and seemed to separate herself from the flock. She slept outside the coop as well and I left her because if she is sick, I don't want the others contaminated. Well, this morning I decided to put her in a cage and give her some Duramycin-10. This is the only medicine I really have and use when I have a sick chicken which has not been too often. She is about 1 year old, type unknown. Came from incubation project and we took the chicks when they were about 8 weeks old. So, anyway, this morning when I went to put her in cage, she was twisting neck in a wierd way and looked a bit strange. Then liquid starting coming out of her mouth and it smelled foul! I tilted her forward and quite a bit continued coming out. It was like when a child throws up all over. So, I put her in the cage. She did drink some water with duramycin. She had been eating and drinking. I have never seen a chicken vomit so I was concerned and wondered if anyone else is familiar with what it might be. Like I said, has only really happened last couple of days. Before that she looked like heck and we just contributed to the fact that she was molting. Lots of neck feathers were gone and starting to grow back so she looks stubby necked. Any clues? Thanks. Stumped in the Hudson Valley.