My 6-week old Buckeyes have been going in to roost now about 8pm. It's still a bit light out. KNowing how they behaved in the brooder, I'm thinking they might take a little time to get situated. Do you give them time to tussle around and settle down in the half-light? Maybe my situation is a little different - the Eglu Cube doesn't have windows except for the pop door and the vents, so I've been giving them until it's really dark before I close the door, just in case.