I have read a bunch on this matter but all say different things. I have a 13 week old BR that is acting very lethargic. She is sleeping standing up and acting as if she is blind. Eyes look okay though. She gets up to the feeder and acts as if she can't find the feed. She will eat but not a lot. My chickens were all free range until just a few days ago when I lost two to possible predators. Since then they have not been getting time out of the run as much until I can source this predator issue. The lethargy seems to have started since she has begun spending more time in the coop and run. More info: -This is my first experience with chickens -My girls eat scratch and peck feed which they love. -They are not laying yet. -I had 16 but two are gone since the weekend. 8 of the hens are about 13-14 weeks old. The other 6 are about 8 weeks old. Any help is greatly appreciated. If you need more info let me know.