It seems I have a hen in the nesting box getting ready to lay an egg. It is 6:10PM. Is this normal or is there a problem? It's been snowing all day today and is very cold out. It also snowed yesterday. The chickens have not stepped foot out into the cold for two days, even though they are free to do so. So, I don't know if weather has anything to do with her laying so late or if something is wrong. What do you think?