So I have had my chicks/pullets (about 11 weeks old now) locked inside their new coop I built for almost a week now. Today with a high of 70, I opened the door and let them out for the first time. The first one was kind of pushed out by the others who were curious as to what was outside of their small universe up to now. I coaxed more out with some food, but ended up going inside the coop and helping the rest out without spooking them too much. After a while, they started doing what chickens do and were milling around the coop, scratching, pecking and eating things. They have not ventured far from the coop at all. My question is, how do I go about getting them back into the coop this evening?