I have RIR. They will be 2yrs old soon and i have never had a sick one. A few days ago i noticed one looked kinda funny and when i threw in treats she just got out of the way. In morning i went out and she did look funny, she is keeping her feathers fluffy and kinda like she is keeping her neck tucked in. I thought we should cull her not knowing what would happen to rest. Hubby said we should wait a fews days thinking it would pass, well it hasn't. She is outside but keeping away from rest of girls and she is still fluffed and has a poopy butt, it looks to be yellow, but not too runny. Any thoughts or suggestions? She feels fine as in not egg bound, her crop feels or smells ok.