Sick hen won't leave coop

[danlan]

I have a cochin hen (almost 1 year old) who seems to be sick. She last laid an egg on Monday (previously she was laying 4-5 eggs a week) and since then she's been camped out in a nesting box and won't leave.

I checked her crop and it's empty. She feels bony and lighter when I pick her up.

There's nothing obviously wrong with her, like an injury or a coop full of bloody stools or anything like that.

If I pick her up out of the box, she'll walk around a little bit, get a drink and then retreat back to the box.

What should I do for her?

* * *
The rest of the flock all seem healthy. They are all same age (hatched in July last year) and are a mix of different breeds.

 

[Rose the Legbar]

She seems to be broody. She isn’t sick but she is trying to hatch out eggs which means she won’t leave the nest. You can put her in a wire sided dog crate with food and water and she should go back to normal.

 

[danlan]

She seems to be broody. She isn’t sick but she is trying to hatch out eggs which means she won’t leave the nest. You can put her in a wire sided dog crate with food and water and she should go back to normal.

Thanks, I'll try that! I have wooden eggs in all the nesting boxes to encourage them to use different boxes. (They used to fight over just 1 box even though they have 4 to use). So, she's been trying to hatch a fake egg