I have a hen that has been in a nesting box for a few hours now. She has been half standing up, which is her almost-ready-to-lay-an-egg stance. She usually doesn't do this, and she has what feels like a semi-hard mass inside her, not near the vent. I closed them up for the night, hoping that she would relax and lay her egg. I'm not sure if this is bad or not, but if she is egg-bound I want to act on it now. Thanks!