Slow Onset Paralysis

[poul-tree-girl]

My chicken was fine a few days ago, and then all of a sudden, yesterday she had a difficult time walking around and getting out of the coop. Now, she can hardly walk. It is awful and I'm unsure of what to do. I've taken her inside where it's warmer and she is in a crate with new bedding (I clean the coop twice a week and remove poop daily. I think I've been doing a good job at keeping things clean, but now I'm concerned I'm not doing enough).
She is not eating or drinking, but is making little "cheep" sounds. Does anybody know what the cause of symptoms might be? Thank you all for any assistance. I hate to see her like this.

 

[Kiki]

How old is she?
How long have you had her and when was the last/most recent time you added any birds to your flock?

Could possibly be dealing with Marek's disease.

 

[Wyorp Rock]

My chicken was fine a few days ago, and then all of a sudden, yesterday she had a difficult time walking around and getting out of the coop. Now, she can hardly walk. It is awful and I'm unsure of what to do. I've taken her inside where it's warmer and she is in a crate with new bedding (I clean the coop twice a week and remove poop daily. I think I've been doing a good job at keeping things clean, but now I'm concerned I'm not doing enough).
She is not eating or drinking, but is making little "cheep" sounds. Does anybody know what the cause of symptoms might be? Thank you all for any assistance. I hate to see her like this.

How old is she?
Can you post photos of her and her poop?

A video of her actions and what she sounds like may help - upload video to YouTube and provide a link.

Does she lay eggs? If she hasn't laid and should have, then give her extra calcium daily for a week to see if that helps. 1 Calcium Citrate +D3.

You can also give her 1/4 tablet B-Complex to see if this makes a difference.

She's not eating/drinking - what's her crop like - is it emptying?

What do you feed, including treats?