Ya, when I was a kid, I got to see the bat swarms at Carlsbad Caverns; it's pretty neat.

Glad they're enjoying my yard. I do walk around the property on and off all night, partly watering plants and pulling weeds, but I don't usually get too close to that line of trees back there.

On the other hand, my neighbor has a few mulberry trees that hang over on my property. I've put a garden out at the edge of those trees, and when I walk around up under them at night, it wakes up some of the birds that live up there. I can hear them get startled and figet around from time to time.