I bought 15 keets 4 months ago. We have a terrible tick problem and thought they could help. I raised them first in the basement, then in a cage in the chicken coop, then when big enough I turned them with the chickens. I read if raised like this when they fly out of the chicken yard they would come back at night and roost in the coop. Now the problem is they don't want to go out. They fly upon the fence but refuse to fly out. A couple did fly out several weeks ago but ran the fence till they were panting so I opened the gate and let them back in. So how do I get these guys to get out and do their job?