About twenty minutes before the sun appears, the bats dart about, feeding. They also show up at evening dusk. One of my projects now is to get some clear pictures of them, easiest in the morning when they are flying against a lightening sky.
This morning I tried both taking a video and extracting screenshots, and regular photos. These are all with default shutter, about 1/60 s., and somewhat blurry. I will try 1/120 s. next. Please enjoy these four pictures of the bats: