Small dark brown swallow found in lowlands and foothills. Namesake white thighs are very difficult to see; instead focus on the overall darkness with little contrast. Rump is slightly paler but does not stand out nearly as much as on Southern Rough-winged Swallow. Small flocks are usually found near forest, though sometimes found feeding over adjacent open areas.
Sign in to see your stats
Weekly Bar Chart
Choose a region to view Weekly Bar Chart