This is a Tachycineta albilinea bird species, Hirundininae subfamily. Common name: mangrove swallow. Native to Mexico and all of Central America. There are 9 species in the genus, very similar. The adult has iridescent blue-green upperparts, white underparts, rump, and undertail- and wing-coverts, and blackish tail and flight feathers. The feathers are greener when fresh and bluer when worn. The white underparts sometimes have faint, dark shaft streaks. The bill is small and black, about 11 millimetres. Observed in Flores town, in the island. Petén, Guatemala.

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拍攝者： Ricardnature