I have brown leghorns and one of them has been acting strangely, like she didn't feel good. She will just stand in one spot by herself like a statue and not move, even though all the rest are busy being chickens. My husband went out to collect eggs late this afternoon and came back to tell me there was a hen still on the nest. We waited 30 minutes then we both went out so I could clean the poop deck. There she was, in the south nest, but standing up....just standing there! No egg. I went over and picked her up and checked her over. Checked her vent. Everything seems OK, but I went ahead and quarantined her for the night. I've never had a sick chicken and I really don't know what to look for. But there is definitely something wrong. She is almost a year old (49 wks). She was a late bloomer. Her comb is finally catching up to the rest and I'm not sure she is actually laying. I've gotten as many as 5 eggs per day from the six hens, but never 6. I'll be checking her again tomorrow, so can you suggest what to look for? I should have some poop in the quarantine coop. Wondering if she could be egg-bound?