Common Nighthawk - Insect Catching

The long, dark wings have a striking white blaze about two-thirds of the way ... They also fly differently, with an erratic, looping flight, and they have conspicuous white bands in the wing that kestrels lack.
On warm summer evenings, Common Nighthawks roam the skies over treetops, grasslands, and cities. Their sharp, electric peent call is often the first clue they’re overhead. In the dim half-light, these long-winged birds fly in graceful loops, flashing white patches out past the bend of each wing as they chase insects. These fairly common but declining birds make no nest. Their young are so well camouflaged that they’re hard to find, and even the adults seem to vanish as soon as they land.