Atticora tibialis
The White-thighed Swallow, *Atticora tibialis*, is a diminutive yet striking member of the Hirundinidae family, distinguished by its glossy, iridescent blue-black plumage and, most notably, bright white feathers on its thighs. Measuring approximately 10-12 cm in length with a wingspan of 25-28 cm and weighing 10-15 grams, this aerial insectivore also sports a prominent white patch on its flanks, visible in flight, and a slightly forked, dark tail. While showing minimal sexual dimorphism, both...
This species primarily inhabits riparian zones within humid evergreen forests, forest edges, and clearings, often near fast-flowing rivers, streams, or waterfalls. It is typically found from sea level up to elevations of about 1,800 meters.
The White-thighed Swallow is an obligate aerial insectivore, feeding almost exclusively on a variety of small flying insects, including flies, beetles, ants, and wasps. It captures prey with remarkable acrobatic flight over water and forest clearings.
White-thighed Swallows are highly active diurnal birds, spending most of their day in agile aerial pursuit of insects. They are social birds, often seen foraging in small to moderate flocks, sometimes joining mixed-species groups of other swallows and swifts. At night, they may form communal roos...
The White-thighed Swallow has a wide and fragmented distribution across Central and South America. In Central America, it is found from Honduras south through Nicaragua, Costa Rica, and Panama. In South America, its range extends from Colombia and Venezuela, south through Ecuador, eastern Peru, a...
Least Concern
- The "white thighs" are not actually feathers on the bird's upper leg but rather a distinct patch of white contour feathers on the flank, often extending down onto the undertail coverts, giving the appearance of wearing white shorts or "tights. - They are remarkably adaptable in their nesting ch...