About Colibri serrirostris (Vieillot, 1816)
Colibri serrirostris, commonly known as the white-vented violetear, measures 12 to 13 cm (4.7 to 5.1 in) in length and weighs 5.6 to 6.8 g (0.20 to 0.24 oz). Males are mostly shiny green, a lighter shade than that of other violetear species. The plumage towards the rump is yellow-green with a blue shimmer. The tail is glittering green with a wide steel-blue band near the tip, and the undertail coverts are pure white. The area behind the eye that covers the ears is violet blue. Females are similar to males but are paler and more grayish in color. The maxilla of individuals of both sexes is sometimes serrated, a feature that gives the species its specific epithet. This hummingbird is found across a wide area of southern Brazil, ranging from Mato Grosso east to Goiás, Bahia, and Espírito Santo, and south to Santa Catarina. Its range extends west into Bolivia, central Paraguay, and reaches into northern Argentina as far south as Córdoba Province. The white-vented violetear inhabits a variety of semi-open landscapes, including scrublands, savanna, grassland, and human-made gardens and parks. It is most common at elevations between 1,000 and 1,500 m (3,300 and 4,900 ft), though its overall elevation range starts at sea level and extends up to 3,600 m (11,800 ft) in the Andes.
