I filled mine, then threw a nice Piñata scratch ontop in front of my roo and 2 seconds he was on it. He taught the girls how to use it. I love it. May be a problem solver.Maybe worth giving it a try now there are less chickens but don't the chickens need to be taught how to use it?
And how about you feeding them just before roost time? Or would that mean you won't have the time to clean up after ?