In my flock of 40+ leghorn hens (hatched this spring) and 4 banti-cross cocks, I have one hen who has been having trouble with her bum. It appears to be inside out. About two days ago, we first noticed the inside out bum. It was quite bad, with a bit of what looked like clotted blood. We pushed it back in and she didn't seem to mind. Then today it was inside out again. We pushed it in this morning and it stayed there until after lunch. Now it's just starting to come out again. She is lively and alert. She eats, drinks and poops normally - although the poop is a bit white. Her bum is messy and her feathers are dull compared to how she was a few days ago. There is one hen in the flock laying extremely large eggs (4 or 5 times normal size and normal for these girls is a large egg) so I think that might be her. She is currently isolated from the flock and rather grouchy about it. She is not expressing any obvious pain behaviour. Any thoughts on what is wrong with her? What can I do to fix her? Going to the vet is not an option. Short of surgery, is there anything I can do for her here at home? Or, should I just put her down?