Hello everyone, I'm sure it's been posted before, but with thousands of posts, I'm not sure I'll be able to read through them all. Here's my situation; I have four hens, one will roost at night, but the other three sleep on the ground in the corner. I've tried putting them up on the roost at night, but they just jump down. What else can I do to get them to stay up there? Would it help to change the height of the roost?