Got home from work around 430 and went to check on the hens and grab up the eggs of the day. I noticed one of my hens was in one of the beds and thought "she's just doing what she does" and went about my business. Well, a few hours later when I went to close up for the night, I noticed she was still in the bed. I went to pet her and she pecked at my hand and made a grumble sound. She is usually very friendly and curious. This is not her normal laying time. I looked around the coop but did not see any signs of diarrhea and nothing seemed out of the ordinary. She didn't want me to get close. I attempted to pick her up and she did the same thing over and over. Is she possibly egg bound and just doesn't want me near her? Her eyes are clear and she does not seem to be out of breath or gasping for air. The others are all up on the perch ready for bed. Not sure if I should isolate her or not??