I've got a Buff who has been sitting in the same nest box for at least 16 hours. I found her last evening when my roost count was off and I had to look in the nest boxes before closing up the coop. This morning, she was still there. I pet her a bit and she cooed. I got some rubber gloves on and picked her up to inspect her, and she was sitting on one nice warm egg (brown and about the right size for her), but it was in her middle, not emerging from her vent. We also have golf balls in all the nesting boxes. I removed the egg and told her she was a good girl and put her back down. I just went back down again--five hours later--and she's still sitting there. She coos when I pet her, and I can pick her up and turn her over. A quick inspection of her vent area shows a little bit of poop on the feathers, but she doesn't look blocked. I don't feel any lumps like impacted eggs, but I'm a new chicken owner with no medical training and I didn't explore inside the vent. She seems calm and normal, but I've never had any of my girls just sit in a nesting box like that.
Any advice for me? Any way to tell whether she's just suddenly broody versus having something wrong?
Thanks to the community for being out here for us newbies!