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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.
The swallow-tailed hummingbird (Eupetomena macroura) is a species in the hummingbird family (Trochilidae), found mainly in east-central South America.Most authorities place it in the genus Eupetomena, although some place it in Campylopterus based on song and the thick shafts of the males' first primaries. [3]
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). Wings are brown and their tails appear a blackish-purple. [3] Males have a fork-shaped tail while females display a more rounded tail with wider feathers.
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Affordability is becoming a growing challenge for younger generations. Although they're often drawn to vibrant cities for their career opportunities and lifestyle perks, high housing costs make ...
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.
Katie Holmes understands the show must go on. The actress stopped by The Tonight Show Starring Jimmy Fallon Nov. 27 to discuss her role playing Mrs. Webb in the Broadway revival of Our Town.Holmes ...