pirattyrann Legatus leucophaius

Found in tropical lowlands and foothills, migratory in northern part of its range. Favors forest edges, plantations, and clearings with tall trees. Named for its behavior of stealing already-built nests of oropendolas and becards. Usually seen as single birds high in the canopy, often perching on exposed branches and calling persistently: a penetrating whistled “swee-u,” repeated and alternated with “ji-ji-jit.” Combination of striped head, small bill, and blurry dark streaking below is distinctive.