About a week ago I lost my 11 week old Brahma suddenly. She had runny poo, lethargic and would stand at the back door all poofed up. When she died she threw up then died. Fast forward a week. My now 17/18 week ameracauna has runny poo, acting lethargic and she is puffing up and passing sleeping standing. I quarantined her and this is her poo. It has looked liked this for the last 3 days and im pretty sure the other 2 hens in the flock are the same. They are eating and not lethargic. Does the poo look normal?? DO any of these symptoms ring a bell with something? Suggestions of where to start? I tried to give her yogurt with meal worms and it was a no go.. The other 2 gobbled it. I have noticed in each of their spots under the roost the pine shavings are really wet where that has never been like that before. Ever.