Thanks for both suggestions. Been wondering if a light would help. As for a nocturnal animal bothering them, I'm betting there is a mouse in the coop. Are chickens generally afraid of mice?
I'm baffled. Chickens are about 9 weeks old. We have a large metal shed with everything they need (hay bedding, roosts, ladders, food, water, nesting boxes), as well as an attached large (10x10) dog kennel for a run.
Not only are they opting to sleep in the run in a big pile at night (vs...