One of my girls who was fine yesterday stayed on the roosting bar this morning when I let them out. I picked her up and she kind of flew out of my arms but snuggled in first (which isn’t normal). She went to the water bowl and took a drink and then immediately laid down and started nodding off and then just laid there until I picked her up and made her a little shelter in the corner of the coop.
I gave her food and water but she doesn’t seem interested.
I’m going to giver her some liquid calcium in case she is egg bound but can I get some suggestions of what else to do?
She does have a bit of poop on her butt but I thought she was just a lazy pooper.
The other 19 hens seem perfectly fine.
I’m a first time chicken owner and never had one act like this

She is about 6 months old.
I gave her food and water but she doesn’t seem interested.
I’m going to giver her some liquid calcium in case she is egg bound but can I get some suggestions of what else to do?
She does have a bit of poop on her butt but I thought she was just a lazy pooper.
The other 19 hens seem perfectly fine.
I’m a first time chicken owner and never had one act like this
She is about 6 months old.