White-vented Violetear illustration
Birdsong field guide

White-vented Violetear

Colibri serrirostris

A large, iridescent green hummingbird distinguished by its vivid violet cheek patches and namesake white undertail coverts. It is known for its aggressive territoriality near nectar sources in South American open woodlands.

What it sounds like

A rhythmic and persistent series of sharp, metallic 'tsit' or 'chi-dit' notes often repeated for long periods from an exposed perch.

Reference call, compare with what you heard
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Rec. Robson Silva e Silva · BrazilCC BY-NC-SAXeno-canto

Field notes

  • It is one of the largest members of the Colibri genus, typically measuring between 12 and 13 centimeters in length.
  • The species is named for its conspicuous white undertail coverts, a key field mark that distinguishes it from the closely related Sparkling Violetear.
  • The violet-blue ear patches are comprised of specialized feathers that can be flared outward during territorial displays or courtship to intimidate rivals.
  • It is a highly aggressive feeder that will vocally and physically defend a 'feeding circuit' of flowers from both conspecifics and other bird species.
  • White-vented Violetears are known to perform altitudinal migrations, moving to different elevations in response to the seasonal flowering of plants in the Cerrado.
Habitat
Cerrado, open woodlands, grasslands with scattered trees, forest edges, and suburban gardens.
Range
Central and eastern South America, including Brazil, Bolivia, Paraguay, and northern Argentina.

Similar & commonly confused birds

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