None of the rest are acting like this. I don’t want to bring her in because then I’ll have to keep her in the whole winter because she won’t be able to handle being put back out in the cold after being in the heated house.you should probly isolate her from the flock because if she has a very infectious disease it could wipe out the flock. are any of the other flock members acting like her? and she has probly been like this for a while because chickens are really good at hiding pain and other symptoms when they are sick
She hasn’t started laying yet and I haven’t seen any abnormal droppings.
Lots of questions, i answered a couple already in other replies. Don’t know if I should still check her vent if she hasn’t started laying yet. She may be getting bullied and not getting enough to eat though. Don’t really have a way to isolate her except to bring her in. No bloody poop. Whole flock previously treated for coccidiosis.She has the typical appearance of a chicken who feels awful. That could be from coccidiosis, dehydration, or starving from being kept from food, or an unknown illness. I would insert a finger into her vent up to 2 inches, just to feel for a stuck egg—use a disposable glove if you have one. It should normally feel soft unless there is an egg.
Get her drinking water right away, and give her a few drops of Poultry NutriDrench or put some SaveAChick electrolytes into her water.
What do her poops look like? Can you separate her just to observe her poops and get her eating and drinking. Offering some chopped egg, watery chicken feed, and plenty of water would be good. Is she having any trouble with balance or walking, or drooping wings? She doesn’t need to be isolated, but just confined so that you can observe her. Keep her warm as well. If she is having runny poops or any with blood, I would get some Corid at your feed store and start treatment for coccidiosis. Has she been laying eggs?