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Birds sing louder and at a higher pitch in urban areas, where there is ambient low-frequency noise. [58] [59] Traffic noise was found to decrease reproductive success in the great tit (Parus major) due to the overlap in acoustic frequency. [60] During the COVID-19 pandemic, reduced traffic noise led to birds in San Francisco singing 30% more ...
Background. The album came from an idea by Anthony Albrecht, a PhD student at Charles Darwin University and co-founder of the Bowerbird Collective, and his supervisor Stephen Garnett, who wrote the report The Action Plan for Australian Birds 2020, published in December 2021, which found one in six (216 out of 1,299) Australian bird species are threatened.
In some areas, bird prey items make a sizeable contribution to the diet. Birds up to the size of sulphur-crested cockatoos (~800 grams) and ducks are taken, but many smaller birds are more commonly taken. One frequent prey item is the tawny frogmouth, a nocturnal bird of Australian forests and woodlands. Insect prey items can dominate the prey ...
Download QR code; Wikidata item; Print/export Download as PDF; ... Pages in category "Bird sounds" The following 20 pages are in this category, out of 20 total.
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.
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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).
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