Today one of my hens stayed in the nest box all afternoon. Even when it became dusk she stayed outside in the next box while the other hens went to bed. My wife went to move her into the night house and she raised her feathers and hissed like when the other girls bother her in the nest box. We got her inside and she went right back into the nest box. I can't tell wether she's egg bound or had become broody. She's a year old. We felt her abdomen and didn't feel anything hard like an egg. I'm not sure whether we should try the warm water bath now or wait till the morning. She just started this behavior this afternoon. She's in the nighttime coop now but still in the nest box. Will a broody hen try to sleep in the nest box instead of the perch? Your thoughts?