I can't find out what's wrong with my Brahma

[BrahmaMom1797]

One of my girls has been sitting between the fence and a branch these past two days and has only really moved to get inside at night, she's still pretty aware and she's not showing many signs of illness that I could make out. She's been vocal and her feet are okay, legs are okay, I couldn't find anything in her feathers. She's just not been eating or drinking much and she's been sleeping a lot. It cold here but it heats up in the afternoons and all of the other birds are fine and still sit around her. I just want to know what could be wrong with her.

 

[Ol Grey Mare]

When you approach her does she react by puffing up an/or vocalizing? Is she going in willingly at night or are you making het?

 

[BrahmaMom1797]

When you approach her does she react by puffing up an/or vocalizing? Is she going in willingly at night or are you making het?

She's relaxed and she goes in by herself.

 

[BrahmaMom1797]

When you approach her does she react by puffing up an/or vocalizing? Is she going in willingly at night or are you making het?

Almost lethargic actually.

 

[BrahmaMom1797]

When you approach her does she react by puffing up an/or vocalizing? Is she going in willingly at night or are you making het?

Sorry last one, she does vocalize, but she and her sister always do when they get picked up, they're both pretty loud.