Possible injury ?

[Mickey M]

My Felicia was limping for a week or so in November, and I just kept an eye on her until she healed. She had hurt her leg at some point. Is your chicken still eating?

 

[BruceAZ]

I agree with @microchick

I too have Marek's in my flock and have had sudden death from it as well as the more usual paralysis/inability to coordinate limbs.

@BruceAZ

Can you post footage of her trying to walk/move.... the video you posted is no more informative than a still shot! There is a notable difference between lameness where the bird is deliberately favouring a particular leg due to pain in the other and the clumsy floundering which indicates that the bird cannot control it's muscles.

Have you had these birds long and if so, have you added any new birds to the flock in the last 2-3months?

We got them as chicks on 4/2016. One died around december 2016 and another around August-September of 2017. We bought 3 more baby chicks on October 2017 but I keep both groups separate for the last 9-10 weeks. The older hens are free roaming around the backyard while the younger ones are in their own temporary run in the backyard. They can see each other.

I got some more videos.... after lying still for 5-6 hours finally...

My Felicia was limping for a week or so in November, and I just kept an eye on her until she healed. She had hurt her leg at some point. Is your chicken still eating?

I was hand feeding her a few times throughout the afternoon today. She can eat and drink just fine but a lot less the last 2 days...

 

[imnukensc]

I'm far from being knowledgeable on diseases affecting chickens, but that looks like a chicken with a hurt foot/leg to me.

 

[BlueBaby]

Hello, @BruceAZ I am really hoping that it is only a hurt leg, and that she will get better soon. Keep us updated on her.

 

[rebrascora]

I would very happily agree. That is an injury or infection and not Marek's. I would give her feet a good soak in a warm Epsom salts bath. Give them a scrub and check the bad one for a bumblefoot scab. Her pad on the bad one looks swollen, so it may be something as simple as a bumblefoot infection although the angle of her leg is slightly off so it may be a problem higher up, perhaps a break or dislocation. I would restrict her movement by confining her to a cage with food and water and perhaps construct a sling to give her good leg a rest every now and then. A sling can be made with everyday items as shown in this photo

You can clip little pots with food and water to edge of the box in front of her, so that she has everything she needs within reach. If you make it so that she can just touch the bottom she should panic less, but she will probably feel anxious at first in it. If she struggles too much to get out and won't settle, don't persevere as that would be counter productive.

If it is bumblefoot, then there are numerous threads on the subject and how to treat it and You Tube will also no doubt have numerous tutorials on surgery to cut it out.
If it is a sprain or a break, then it will take several weeks to heal and you can give her a half a baby aspirin a day for the pain.