I left the basement door open (opens to the outdoors) while I was out cleaning the coop. The girls, who are now 10 weeks old, were out wandering in the snow, enjoying some fresh air. Well, one of them found the open door to the heated basement and with in minutes, I had a flock of chickens inside enjoying the warm wood stove!! I felt bad kicking them back out into the 20 degree snowy day! I think I received the stink eye from every single one of them.