My hens are hopping from their ramp into the automatic door, to top of coop and then on to the 6 foot wooden privacy fence. So far I have lured them down before they go over but I can't watch them 24-7. I was thinking if there were some way to keep them from perching on top of the door that would stop the progression to over the fence. Does anyone have suggestions? I have already clipped one wing but they are young birds and light enough to still flutter pretty high.