When I first put my chicks in their coop I left them closed up in there for 3 days. That established "home" for them - food, water, nesting boxes, altho they weren't laying at that stage. I had a person-sized door that I opened and closed for them after that, but I never had to actually catch and place them in the coop, as they recognized it as home. One time that door blew shut and boy, did they make a fuss that night !!! I think the key for me was that 3-day confinement. Agree with all re: being creatures of habit and resisting change, so be careful what kind of monster you're creating !!! They are very adaptable, however; they'll just tell you how badly they're being treated.........