Hello, this is my first post! I just bought 3 chickens from the feed store after constructing my coop. They are 5-month old pullets, Red Sex-link breed. My problem is that they don't want to go into their henhouse at night, where their roost is. They have to walk up a ramp to get into it, which is just a plywood board with dowel rods I cut and nailed to the board so they can grip it. But they just sleep on the ground inside the coop's run area. Any ideas? Here is the coop while it was under construction. The arches are covered in chicken wire now, and the ramp goes from the little door in the henhouse down to the ground just in front of the door (which is the rectangular pipe structure closest to the camera). Thanks in advance for your help!