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Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs (often simply birdsong ) are the bird sounds that are melodious to the human ear. In ornithology and birding , songs (relatively complex vocalizations) are distinguished by function from calls (relatively simple vocalizations).
Many birds have made sounds which are onomatopoeically described as "squawk". Squawks have been described in bird fancier's disease and other forms of hypersensitivity pneumonitis. [1] In humans, squawks are also heard in a variety of conditions in which alveolitis is present. In one study they were found in 10% of patients with pneumonia. [2]
There are about 17 species in two genera, although three species of mockingbird from the Galápagos Islands were formerly separated into a third genus, Nesomimus.The mockingbirds do not appear to form a monophyletic lineage, as Mimus and Melanotis are not each other's closest relatives; instead, Melanotis appears to be more closely related to the catbirds, while the closest living relatives of ...
The Nature Cam captured birds, with plenty of sharable videos, and the quality of the images were great, too – not to mention the sounds, though it mostly was them crunching the spicy bird seed ...
An annual International Dawn Chorus Day is held on the first Sunday in May [6] when the public are encouraged to rise early to listen to bird song at organised events. The first ever was held at Moseley Bog in Birmingham, England, in 1987, organized by the Urban Wildlife Trust (now The Wildlife Trust for Birmingham and the Black Country).
The archosaurian shift from larynx to syrinx must have conferred a selective advantage for crown birds, but the causes for this shift remain unknown. [10] To complicate matters, the syrinx falls into an unusual category of functional evolution: arising from ancestors with a larynx-based sound source, the syrinx contains significant functional overlap with the structure it replaced.
A large body of research supports the health benefits of being an early bird. But being a night owl isn't all bad, say experts. (Photo illustration: Aïda Amer for Yahoo News; photos: Getty Images ...
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