This winter it has been in the 20's and 30's during the day, and night time sometimes drops close to zero. My chickens are always in the coop during the winter and I usually get 2-3 eggs from 17 chickens. Today I let them out as it got into the 40's. I ended up getting 8 eggs this afternoon. None this morning before going out. So is this normal, or a coincidence ? Or are they thanking me for letting them out? Thanks and sorry for the long question.