I have 12 hens and a rooster. All are at least 14 months old. Last year when it was warm, a few of them stayed outside the henhouse and I had to grab them and reopen auto door, insert them, and re-close. I thought it was just because they were young and still determining the pecking order in there. However, it is now getting warm again and anywhere from 2 to 6 of them stay out very late. I've changed the auto door closure to 10 pm (it is very dark by then) but there are always a few still sitting on the coop's porch roof or on the top of a little nursery run I built. They are inside the very large caged area, but I've had trouble with weasels cutting through any fencing plus the top is covered in chicken wire which many animals can pierce. I want them inside the hen house with the auto door closed to feel completely secure. There are at least 13 linear feet of roosting poles so I think overcrowding is not an issue. It's true they fight over the nest boxes (I have four) so perhaps there are social issues but once it gets dark, why can't they just go in and sleep? Short of having to go out every night to reopen door and manually put them inside, what can I do?