My husband built a new roost outside. 5 feet from the coop in the pen . It has got a roof over the pen and is all fenced in . I have 3 dogs to keep any varment away from the yard. All of my hens would go sleep on the roost in the coop. But since another roost was built in the pen they have been sleeping on it. Are they smart enough to know that they can also go into the coop to sleep or do they just want to sleep outside ? And will I have to take the new roost down?