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The Bahama woodstar is a small hummingbird, growing to be only about 8 to 9.5 cm (3.1 to 3.7 in) in length. [11] These birds weigh around 2.4 to 3 g (0.085 to 0.106 oz). [ 12 ] Their backs are green and gold, with olive-buff underparts, and flanks fading into white (males) or cinnamon (females).
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Humming serves communication purposes by alerting other birds of the arrival of a fellow forager or potential mate. [71] The humming sound derives from aerodynamic forces generated by the downstrokes and upstrokes of the rapid wingbeats, causing oscillations and harmonics that evoke an acoustic quality likened to that of a musical instrument.
Both birds have white eyebrow stripes. They have short, rounded wings, a very short tail and a long thin awl-like bill which is brownish and slightly upturned for insertion into cracks. [3] The rifleman flies quickly with a wing beat producing a characteristic humming sound like a hummingbird.
The female is larger than the male and weighs around 1.7–1.9 kg (3.7–4.2 lb) against a weight of 1.2–1.5 kg (2.6–3.3 lb) in males. [2] They are normally silent but, when disturbed, utter a metallic chik-chik-chik call. Displaying males croak and produce a deep humming sound. [2]
Authorities have arrested the grandfather of a 1-year-old boy who was unaccounted for after a Dec. 8 crash that killed two of his family members and critically injured his mother.
The booted racket-tails are a small group of hummingbirds in the genus Ocreatus that was long considered to have only one species, O. underwoodii.They are native to cloud forest edges in the South American Andes and Maritime Andes.