We have 5 hens, all about 10 mths old. Had them all since last summer. 4 are beautiful and healthy, and one, is not, as of about 3 - 4 weeks ago. Up till then though, she'd been beautiful and healthy as well. She is a white "supposedly" EO. When she first started looking off, she just had slowed down. Wasn't keeping up with the others. It progressively got worse, to the point she wasn't able to get down the ramp in the morning when we let them out. She's tippy, seems to have horrible balance. She stands completely upright like a penguin. Tail down, wings often down. I've had her isolated for the past week+. Found lots of bugs (I'm assuming lice) on her, but none of the other hens have any. (I've treated them as well though.) We bathed sick chicken and dried her thoroughly. Doused her and her hospital box with Dusting powder. Thankfully all the bugs are gone now. She doesn't move around much. When we let her outside now, she just stands. Sometimes sits. If she does walk, she highsteps like she's walking on broken glass, it's very odd. She's still eating well, she gets pellets and I've been making her cooked egg yolk, oatmeal, shredded apple, and bits of other kitchen scraps twice a day and she eats it all up. I've put Poul-vite in her water and she's still drinking. Gave her a bit of ivermectin. She seems skinny though. She hasn't layed for the past two days, but had been laying nearly every day prior. And, she's very hard to pick up now, and never used to be. We can't touch her wings at all or she flaps as though she's in pain. So I need to gently scoop her up from underneath and cradle her without touching her wings. I don't often pick her up anymore though, because she'll then stand with her mouth open, as though she's just been very stressed out. Poor little love. Our other hens, bless their hearts, are so gentle and kind to her. Before I had isolated her, they were so kind to her, never bothered or pecked at her. Since she's been isolated, I've been letting her out every couple days with the others in the big yard, and still, they are so kind to her. My question is though: what is wrong with her? This has been about a month now. I won't be able to re-integrate her back into the coop like this, she's too weak and wobbly, and can't get up onto the roost to sleep with the others. Thoughts? I"m thinking her time's likely up, but want to be very sure first. Thanks for any advice!