Spent good time and money building a coop with automatic door for my chickens and they refuse to go inside. Its plenty big. 5x8 for 4 chickens with a 12x12 yard. They will go under it to sleep but never in it. Granted they have only been in there for just under 2 weeks, but how can I get them to take to going inside. The door is about 13x13 and about 15 inches of the ground.
patience!
Here is how I have gotten my chicks to go into the coop at night. I give them some treats. When they figure it out that if they go in they will get some treats, they go right in. One of their favorites is worm but I do give them a little scratch grains too. I also have some grit in there too. I have a bucket that I keep the treats in and when they see the bucket they know it's treat time. I also have some night lights in my coops. The lights are 3 watt LCD bulbs. They give off about the same amount of light as a standard 25 watt bulb does. Good luck and have fun...