The Mangrove Swallow (Tachycineta albilinea) is associated with areas of water, including mangroves, but may be found near rivers, lakes, ponds, marshes, coastal beaches, and wet meadows. A characteristic feature that distinguishes the Mangrove Swallow from other white-rumped swallows is the white supraloral streak. The upperparts are dark, part from a white rump; in fresh plumage the color is nearly black with a green-blue gloss, but with wear the colour becomes closer to steel-blue. The underparts are white with a grey wash. It breeds in coastal regions from Mexico through Costa Rica, Guatemala, and Central America to Panama.
