Hi Iam new on here and trying to figure out where I can ask a question. Hopefully this is right. I have 2 Silkie hens. Their house is up off the ground and we made them a ramp to gwt into it. But they are not using it and cuddling up on the ground. The ramp is about 6 inches wide by 4ft long graduated with slats on it. About 3 ft off the ground. They can get off of it. I usually pick them up and put them away at night. ARE they going to learn to use this? Or do we need to change something?