Does she bark generally from the same area? For example Brandi will always stand at the top of the stairs when she's barking at something because that is where she can get a good look at what is outside.
Is it around the same time every night or at different times? My cat used to stared at the same wall for about a week straight....it really used to creep me out. She stopped after about a week of doing this. It was always the same time of night. I still don't know if she was hearing a critter or if it was actually a ghost. |