Just like the others already mentioned, it could be anything disturbing their nightly slumber. Cats, raccoons, snakes, mice, rats, weasels, owls around the coop, or headlights of cars, motion sensor lights, the list goes on.
Once our roosters would not stop during the night and we found raccoons on top of their coop. Ever since we took care of the rats and installed hot wire, only the headlights or motion detector lights set them off regularly.
The rooster's crow is a warning.
Once our roosters would not stop during the night and we found raccoons on top of their coop. Ever since we took care of the rats and installed hot wire, only the headlights or motion detector lights set them off regularly.
The rooster's crow is a warning.