Stutzschwanzsegler Chaetura brachyura

Fairly small, dark swift found in lowlands and foothills throughout much of northern South America. Shape is distinctive compared with other Chaetura swifts: look for broad wings that bulge along the trailing edge and appear pinched in at the base, accentuating the short, square tail. Fairly common. Often occurs in loose flocks that forage over forests, rivers, and adjacent open areas.