Appearance
The violet sabrewing is 15 cm long; the male weighs 11.5 g and the female 9.5 g. It is the largest hummingbird found outside of South America and the largest sabrewing. The adult male is deep violet, with a dark green back and wing coverts. The shafts of the male’s outer primary flight feathers are thickened and flattened to give the distinctive feature which gives the sabrewings their English and scientific names. The three outer pairs of feathers of the otherwise black tail are white; this gives rise to the scientific species name, ''hemileucurus'' translating as "half-white tail", but several other sabrewings share the tail pattern, not least the white-tailed sabrewing of Venezuela and Tobago.The female is dark green above and grey below apart from a violet throat; the tail pattern is the same as the male's. Young violet sabrewings have buff edges to the feathers and lack any violet, although juvenile males may be dusky green-blue below.
Habitat
The call of the violet sabrewing is a sharp twitter, and the song of the male, given at leks of up to ten males, is a high-pitched piercing ''cheep tsew cheep tik-tik tsew''.
Food
The food of this species is nectar, taken mainly from undergrowth flowers with Heliconias and bananas as favourites. The males are less aggressive and territorial at flowers than their size would suggest.References:
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