I have some chicks that are about 3 wks old. I have them in a coop, with attached yard. There is a heat lamp that keeps it about 80-85 degrees under the lamp. When I try to put them in the coop at night, they come right back out. Are they smart enough to go inside before they freeze? Link to pics below. (How do you get the pics to show without having to click on link?)
https://www.backyardchickens.com/forum/uploads/28384_dscf2662.jpg
https://www.backyardchickens.com/forum/uploads/28384_dscf2657.jpg
https://www.backyardchickens.com/forum/uploads/28384_dscf2662.jpg
https://www.backyardchickens.com/forum/uploads/28384_dscf2657.jpg