Ok here's our problem. Five weeks ago my wife and I purchased 12 baby chicks. We kept the chicks indoors under the heat lamp while I built a very nice coop with a connected caged area. After five weeks we moved the chicks outdoors were they seem very happy until dark. Once it gets dark the chicks will not go into the coop. They all just huddle up in one corner of the caged area and chirp until we pick them up and place them in the coop were they stay until morning. We would appreciate advice on how to get our chicks to go into the coop on there own at dark. Thank you.