We are currently in Brasilia, the capital of Brazil, where Tropical Kingbirds (Tyrannusmelancholicus) and Fork-tailed Flycatchers (Tyrannus savana) nest. We work in Parque Alvorada, an urban park, monitoring nests and banding birds. Tropical Kingbirds are found in Brasilia year-long and may be partial migrants here. Fork-tailed Flycatchers are migratory here, arriving in Brasilia in September and nest from October to December, before returning to the Amazon and Orinoco Basins, where they spend the non-breeding/dry season, which lasts from March to August Brasilia. We are also placing geolocators on Fork-tailed Flycatchers in Brasilia. We recently analyzed data from a geolocator that Marvin Morales, working with Andre Guaraldo (Universidade de Brasilia), had put on a Fork-tailed Flycatcher in Brasilia in 2011, and it appears that it spent the non-breeding season in southern Venezuela/northern state of Amazonas, Brazil.