The Mangrove Swallow Tachycineta albilinea breeds in coastal regions from Mexico through Central American to Panama. It is non-migratory.
The adult Mangrove Swallow has iridescent blue-green upperparts, white under parts and rump, and blackish tail and flight feathers. There is a thin white stripe from the bill to above the eye that distinguishes it from the Tree Swallow. The female usually has duller colors than the male. This species is closely associated with fairly still open water, and is often found in small flocks over rivers or lakes when not breeding. The Mangrove Swallow subsists primarily on a diet of insects.
The flight of the Mangrove Swallow is typically direct and low over the water. It frequently perches.

These photos were taken at the Sarapiqu River at Selva Verde and the Taracoles River.

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