An American Kestrel flies to her perch clutching a Jerusalem Cricket. I’ve read on Wikipedia the Jerusalem Crickets are nocturnal, but I regularly see Kestrels pluck one after the other off the ground. They hover for a few minutes, swoop down, bring one back to a perch, devour it, and repeat over and over. If they’re truly nocturnal and that easy to find during the day, the ground must be swarming with them at night.