It's a motion-sensor camera. However, I actually was awake and sitting in the living room, at that time!
We live "out in the country" and often see deer running through the rear of our property. There's a creek that runs along the side but unless we get a lot of rain, it drains quickly. I have two birdbaths and rinse/fill them both, each evening (and again in the morning, if they need it). The other birdbath is closer to the treeline and during the dryer times, is frequently emptied at night. That one also had a visitor but still had some water in it (this morning), so I'm surprised the deer chose this one, which is pretty close to the house.
Waiting on a lawn mower belt to arrive, in order to cut that grass!
