I am glad I found this thread!
I have my first broody hen and am really excited! I noticed her Monday, but took all the eggs out because sometimes some of the hens in that pen lay kind of late in the afternoon, so I just figured that was what it was. Well, Tuesday she was still there, had a cpl eggs under her, so I put the rest I gathered from that pen 4-5 under her as well. She has been in there since. I never saw her move, which I am sure she did...but anyway. Well today I left for about an hr and a half. She was in the next when I left. When I cam back I noticed that she was in the nest box over from it sitting on 2 eggs! The other eggs still felt warm. I took her off those 2 eggs, and put her back in the box that had her clutch of eggs she had been sitting on. Since they were still warm, do you think they are ok? I don't know how long is too long.... I try to keep the eggs picked up from all the boxes, I guess she got confused?