Hi, I am new to the chicken world. My chickens coop does not have any windows, so there is no light getting in. We have a light in there that we turn on in the morning and off at night. Should we put it on a timer and have it come on about 5 am and go off at 8 pm. They have been sleeping outside, so should I shut them in the coop before the light goes out so they will start roosting. I haven't seen any of the roosting. Any advice would be appreciated.