Went outside today to find my shy little orpington acting odd. She has her eyes closed and is acting very sleepy, huddling up either by herself or with her friends if she can find them. No runny nose, no wheezing or sneezing, so it doesn't seem respiratory. Haven't seen her poop yet. Should we still give her tetracycline or is this something just a few nights of sleeping indoors by herself help? Could this just be exhaustion? She and her "siblings" are relatively new to the flock, so our dominant hen is hassling them all night by demanding their sleeping spots because obviously every spot is her spot. We live on coastal California so our nights are definitely not chilly, so I don't think a cold night is the cause either. EDIT: Just saw her poop. It was yellow liquid. That's making me worry it's something serious.