The black-backed water tyrant is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, Paraguay, Peru, and Uruguay.
Region
Central and eastern South America
Typical Environment
Occurs widely in wetland mosaics across Brazil, Bolivia, Paraguay, Uruguay, northern Argentina, and adjacent Peru. It favors marshes, oxbow lakes, riverbanks, lagoons, rice fields, and seasonally flooded savannas. The species typically stays close to open water with scattered shrubs or low trees for perching. Human-modified wetlands such as cattle ponds and irrigation canals are also used.
Altitude Range
0–1200 m
Climate Zone
Subtropical
Ease of Keeping
Beginner friendly: 1/5
This striking black-and-white flycatcher frequents the edges of water, often perching conspicuously on reeds, fence posts, and low branches. It performs quick sallies to snatch insects over open water and muddy shores. Pairs are commonly seen near wetlands and may shift locally as water levels change.
Costanera Sur, Argentina
Temperament
social and active
Flight Pattern
short rapid wingbeats with frequent low sallies over water
Social Behavior
Usually seen in pairs or small family groups along water margins. Pairs defend small territories during breeding and build cup-shaped nests low over water in shrubs or reeds. Both sexes participate in nest building and care for young.
Migratory Pattern
Partial migrant
Song Description
Vocalizations are sharp, high-pitched chips interspersed with brief, squeaky trills. Phrases are simple and repeated from exposed perches, especially at dawn and late afternoon.
Plumage
Crisp, contrasting pattern with a clean white head and underparts set against a glossy black back, wings, and tail.
Diet
Primarily captures flying insects such as flies, beetles, and dragonflies in aerial sallies. It also gleans small arthropods from emergent vegetation and occasionally picks prey from the water surface or muddy edges. Small aquatic invertebrates may be taken opportunistically.
Preferred Environment
Feeds along open shorelines, marsh edges, rice paddies, and flooded fields where perches are available. Often hunts from low exposed posts, reeds, or wire fences near shallow water.
