I have 2 hens that are 3-4 years old and basically pets now. One of them hasn't been acting like she feels good. She's had loose stools for 3-4 weeks and now she isn't eating good. Today I picked her up to examine her rear end and held her head down, and all this iiquid ran out of her mouth. What was that all about? She seems weak now too. I wormed both of the girls about a month ago with Enda-worm. I let them free range alot. Her stools are greeen, yellow and white colored. Any advice would be greatly appreciated.