I have a 4 13 week old buff orps, 3 are perfectly fine, but one started acting really strange yesterday when i was putting them in the coop for the night. when i let them out this morning, she didnt eat properly and has barely eaten all day, she is really lethargic, barely moving, she walks about tho but not fast. One of her poops this morning looked a little suspicious possibly had blood in it, but not sure, but i cant guarantee it was her, nor have i seen her poop since. crop is really empty aswell. could it be the dreaded coccidiosis?? is there anything else it could b? what treatments can i give her? please anyone help.