Sick chicken?? What does this mean? What should I do?

[mottocytie]

Hello everyone!

So this is my leghorn hen she is 2 years old (almost 3) and she’s been acting off lately, for example today she layed an egg (just the yolk) and there was a very very thin shell, she’s just been sitting in the coop for 5 hours now and I’ve picked her up and tried giving her some water and food and she just doesn’t eat she doesn’t play with the rest of the flock and doesn’t step a foot outside the coop. I give her calcium rich feed including oyster shells so I am not sure why she is laying egg yolks without the shells. Also I’ve noticed her feathers are a bit weird looking im not sure if this is normal but I’ve attached some pics below let me know what I should do and what this could mean!

 

[StinkyAcres]

When was her last molt? Give her a Calcium Citrate+D3 tablet (around 300mg) for a couple days and see if that helps with the egg issues. Just pop it in her beak and let her swallow it.

 

[Mrs. K]

I can't tell if those are just new feathers coming in after a molt. That is what I think they are. Could be mites or lice?