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Copper-rumped Hummingbird




  Name Copper-rumped Hummingbird
  Regnum Animal ia
  Phylum Chordata
  Classis Aves
  Ordo Trochiliformes
  Familia Trochilidae
  Genus '' Saucerottia ''
  Species '''''S tobaci'''''
  Binomial ''Saucerottia tobaci''
  Binomial Authority ( Gmelin , 1788 )


The Copper-rumped Hummingbird, ''Saucerottia tobaci'' (formerly ''Amazilia tobaci''), is a small Bird that breeds in Venezuela , Trinidad and Tobago , and has occurred as a Vagrant on Grenada . It is a seasonal Migrant in parts of Venezuela.

This Hummingbird inhabits open country, gardens and cultivation. The female Copper-rumped Hummingbird lays its eggs in a tiny cup nest on a low branch, or sometimes wires or clotheslines. Incubation takes 16-17 days, and Fledging another 19-23, and there may be up to three broods in a season.

The Copper-rumped Hummingbird is 8.6 cm long and weighs 4.7 g. The bill is fairly long, straight and mostly black with some pink on the lower mandible. The adult has copper-green upperparts, becoming copper-bronze on the rump. The head and underparts are bright green, the thighs are white and the tail and legs are black. The sexes are similar.

The subspecies which breeds in Trindad and northern Venezuela, ''S. t. erythronota'', is smaller and has more bronzing on the upperparts than the nominate ''S. t. tobaci'' of Tobago. The latter race has occurred as a vagrant to Grenada. There are several other forms in Venezuela differing in the colour of the rump and back.

The food of this hummingbird is Nectar , taken from a wide variety of Flower s, and some small Insect s. Copper-rumped Hummingbirds perch conspicuously and defend their territories aggressively against other hummingbirds, Bee s, and larger bird species. The call of this species is a ''chip'', and the song is a high- Pitch ed ''tyee-tyee-tyoo''.


REFERENCES


  • ''Birds of Venezuela'' by Hilty, ISBN 0-7136-6418-5

  • ''Birds of Trinidad and Tobago'' by ffrench, ISBN 0-7136-6759-1