Inter- and intracontinental migration by the Eastern Kingbird (Tyrannus tyrannus)

We recovered 12 archival geolocators deployed on Eastern Kingbirds (Tyrannus tyrannus) breeding in New York (NY; n = 3, 2 with years of data), Nebraska (NE; 6, 1 and Oregon (OR; 3) to describe migratory routes, timing rates migration, nonbreeding season distributions, connectedness. NY fall migrants migrated along the Atlantic coast Florida, flew either nonstop across Gulf Mexico (GoM; 3 birds) or stopped once way (Cuba Cayman Islands different years) land Yucatan/Central America. Fall birds from NE OR arrived at GoM region border between Texas Louisiana, most likely took a route Central In spring, all GoM, North America, more inland than fall. Trans-GoM flights were common among spring Birds faster fall, both seasons, late departure was associated rapid migration. Migratory connectivity low, OR, one bird each, occupied single northwestern Amazonia (southern Colombia, northern Peru, eastern Ecuador) while South Most kingbirds intratropical migrants, occupying regions for periods ≥30 d. The latter farther south western Brazil Bolivia, but then moved north later use same area where other remained throughout overwinter period. Northwestern thus appears be critical during season, possibly because prolonged wet supports abundant fruit resources.