Potential Neurological issue

[Redding]

I have a Bardrock hen that is about 2-3 years old. A month or so ago I noticed she was standing by herself not moving much. I thought she was just standing in the sun, but a day or two later I found her in the barn flopping around, flapping her wings and not able to remain upright. I put her in a dog kennel near my back door, provided food and water. As the days went by, she got a bit more stable on her feet, began eating and drinking pretty well. My thought was to get her away from the other hens (I have 14 total, no roosters) and see if she would come out of it. She's been in that kennel for 2 weeks now, she eats well although it's a bit difficult for her as, while she's more stable on her legs, her head and neck motions are not normal. She bends her head down most of the time. When she tries to walk, she tends to walk in a circle to the left, and she often makes a yawning motion - stretching her neck a bit and opening her mouth like a yawn. I'm guessing some neurological damage, but not sure if she had a virus, or what. I tried to put her into the chicken house last night thinking a reintroduction into the flock at night would be best. She had not come out of the chicken house, and I'm sure she got no water while in there. One of the hens pecked at her and I don't want her injured more, so I put her back in the dog kennel this morning with her own food and water. Anyone have any idea what might be going on with her?

 

[BirdsBeesTrees]

Have you ever wormed your birds? Is she bony?

 

[Redding]

I have not wormed them. What's the best way? I can't really catch my hens, they are rather free range with a coop to go into at night, so I haven't really picked up any of the others to feel their weight. I don't think she's in as great a weight as she could be, but then she's been sick and wasn't eating well for awhile.

 

[humblehillsfarm]

https://the-chicken-chick.com/control-treatment-of-worms-in-chickens/

This was my Bible for worming chickens. I am NOT an expert in worms or even chicken illnesses, but a worm/parasite was my first guess. The yawning thing reminded me of gapeworm. I used Safe-Guard Equine dewormer in the dosage recommended by the Chicken Chick. I put the dosage in a spray bottle and sprayed down their feed. Ten days on, ten days off, then ten days on again. There is a ten day egg withdrawal period so basically an entire month. You should do the whole flock.

 

[BirdsBeesTrees]

@casportpony Please help.
The one you can catch you will have to squirt dewormer down the side of her mouth. The ones you can't... Casportpony recommends you have an idea of figuring out the total weight of your flock. I mixed mine up with a bunch of mealworms and boiled eggs. My peafowl gobbled it up without knowing they'd been dosed.
I used the Safeguard liquid goat wormer.

 

[BirdsBeesTrees]

"Fenbendazole – Safeguard liquid goat wormer dosage for chickens is 0.23ml per pound of weight. To treat roundworms - give once, then repeat in 10 days. For all the other types of worms Safeguard treats, give for 5 days in a row."