The Swallow Tanager (Tersina viridis) is a medium-sized songbird of the Tanager family. The female is a yellow-green, and the male chiefly turquoise blue with a black face, short swallow-like bill, and long wings, and nests in burrows in cliffs in northern South America. It is typically found in large, single-species flocks of 12 or more birds, but groups of over 100 individuals have been known to occur in central Brazil. The Swallow Tanager lives in forest edges, open woodlands, clearings, second growths, and other areas close to water.
