i have a young leghorn 4-6 months roughly not laying yet that I know of. Found her last night not moving, huddled in the coop under the nest boxes. I thought she might be cold so I picked her up and cuddled her in my jacket for about 15 minutes. She is not normally very friendly, she is usually flighty with me but a very active little bird. She had no problems with me holding her and she fell asleep. I put her in a nest box and added a lot more straw thinking she was cold because the temps here went from 80s and 90s one day to 50s yesterday and colder last night. When I went to check on her this morning she was still in the box but had shifted around. I gathered her up again and grabbed a box and now she is in my house. I got her to drink about two small cap fulls of water. Just a few minutes ago. No interest in food. She was a little curious of her surroundings but still very calm and lethargic. I couldn't feel anything around her crop area, from what I know of. And nothing in her abdomen. No lice or mites and a clean vent. No injuries that I know of. She is one of my smallest birds even though there are younger birds in with her. She is very light but always has been.