Im having similar problems. My chickens have been in the coop for a little over a week. Ive been letting the girls out but they refuse to use the ramp. Past two days its rained while i was letting them out on their trial outdoor time, rather than looking for shelter they just huddle together in the middle of the yard. Tonight i was hoping they would get the idea but instead the were perched in a tree next to the coop. How can i persuade them to go to bed?