The first night was no problem. I went out at dusk and literally placed them on. Tonight it worked with the first one, but the other 4 were not keen. Yesterday their feet just seemed to grip when I held them above the perch. Tonight their feet didn't grip. Do they have to actually be asleep to do this? They were settled tonight, but don't think they were asleep. Obviously I don't want them sleeping in their poop, but I have left 3 on the floor of the hut tonight. Our perch is about 10-12inches off the floor of the hut. Should we put a ladder so they can climb up it. I am a bit concerned they won't jump onto the perch because the hut is only about 3ft high so not that much room above the perch and thought that might put them off?