Steely-vented hummingbird

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Steely-vented hummingbird
Steely-vented Hummingbird (Amazilia saucerrottei) 1.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Trochilidae
Genus: Amazilia
Species: A. saucerottei
Binomial name
Amazilia saucerottei
(Delattre & Bourcier, 1846)
Amazilia saucerrottei map.svg
Range of A. saucerrottei      Year-round range
Synonyms

Saucerottia saucerrottei
Saucerottia sophiae
Amazilia sophiae
Amazilia saucerrottei

The steely-vented hummingbird (Amazilia saucerottei) is a medium-sized hummingbird that is a resident breeder from Colombia and northwestern Venezuela. The Central American birds differ in voice and behaviour from those in South America and may be a separate species, the blue-vented hummingbird (A. hoffmanni). Both forms are sometimes placed in the genus Saucerottia, but this is not recognized by most authorities, notably AOU and Howard & Moore.

This hummingbird inhabits open woodland such as second growth, coffee plantations, gardens, savanna, and the edges and gaps of evergreen forests. It occurs from sea level up to 1,800 m (5,900 ft).

The nest is a cup of plant down and cobwebs, decorated outside with lichen and placed on a small outside twig 2–7 m (6.6–23.0 ft) high in a small tree. The female alone incubates the two white eggs.

The steely-vented hummingbird is 9 cm (3.5 in) long and weighs 4.5 g (0.16 oz). It is mainly bronze-green above, becoming more bronze on the wing, lower back and rump, and has a blue-black tail. The male has glittering green underparts, white thighs and a blue vent. The female is duller green below and has grey-buff edges to the vent feathers. Young birds are dull dark bronze-green below.

The steely-vented hummingbird has a trilled descending chit call in South America, but the Blue-vented from Central America has a high sharp tsip. The male's song in Costa Rica is a buzzy bzz WEEP wup.

This hummingbird feeds at many types of flowers, including epiphytes and Heliconias, and both sexes are aggressive and territorial, defending favoured areas.

References[edit]

  • Stiles, F. Gary; Skutch, Alexander F. (1989). A Guide to the Birds of Costa Rica. Comstock Publishing Associates. ISBN 0-8014-9600-4. 
  • Hilty, Steven L. (2003). Birds of Venezuela. Princeton University Press. ISBN 0-7136-6418-5. 

External links[edit]