I wish I had known to lock mine up at night. We inherited an old gimpy rooster and he was like one of our dogs - part of the pack. For 2 years he roosted on our doorstep each night. No matter where I tried to move him or to provide him a nicer spot, he'd come back and roost there. Last year a friend was moving and could not take her 2 pet hens, so she asked if I would take them. I was worried that they might be a draw for predators, but honestly did not realize how dormant they are when they roost and how determined a predator can be. The hens roosted in the old chicken coop that came with the farm, but were not locked up. One night something came and got all 3 of them. I agonize over how stupid I was to have not locked them all up at night - the 2 years we had old Joe the Rooster made me complacent about predators.
Now we have 2 pet roosters (a Black Cochin named Elvis, and a Wynadott named Wiley) and they are penned during the day and locked up tight at night. We still worry about predators - we seem to have many more hawks and eagles lately - but they are as safe as we can make them now....