Any of your dogs scared of the dark?
Jazzy seems to be. From the time she moved in here, if it is dark outside she is reluctant to go out to potty. She'll stand at the end of the porch and peer out into the yard in the direction of the woods, but won't leave the porch alone unless I walk out and wait for her. The whole time she is doing her business, she keeps looking out into the woods, and once she is finished she makes a beeline for the door.
If Gypsy is outside with her, she goes out with no problem. Once she is finished then she sits on the edge of the porch peering out at the woods.
If Gypsy hears something in the woods, she'll take off for the fence, and Jazz will follow her. But Jazz'll never do that alone!
During the day, she has no qualms about any part of the yard, and loves to go for walks in the woods.