Purple martin feeding frenzy, near Blenheim, Ontario, Canada, July 14, 2019.
Most young have left the colony houses but some remain. There were 7 on the porch before I got this image.
The Purple Martin not only gets all its food in flight, it gets all its water that way too. It skims the surface of a pond and scoops up the water with its lower bill.
source - https://www.allaboutbirds.org/guide/purple_martin