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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 ...
A bird singing contest is a competition of songbirds, usually caged examples of wild species. Such contests are held in at least 22 countries of the world, and at ...
A European robin singing at dawn. The dawn chorus is the outbreak of birdsong at the start of a new day. In temperate countries this is most noticeable in spring when the birds are either defending a breeding territory, trying to attract a mate or calling in the flock.
The superb lyrebird is renowned for its elaborate vocal mimicry, [24] with an estimated 70–80% of the male's vocalisations consisting of imitations of other species, mostly other birds [25] but occasionally marsupials. [26] Females also sing, regularly producing both lyrebird-specific song and vocal mimicry. [27]
In addition to proverbs highlighting the bellbird's singing abilities, some compare the restless nature of female bellbirds, who are constantly on the move, to that of irresponsible or even promiscuous women. An example is "Ehara! He kÅpara kai rerere." (Hey! The bellbird is a restless bird.) which could describe an irresponsible woman. [87]
In the absence of her mate, females are said to sing equally well. [15] Anxious birds utter a plaintive, descending peeeeeuu note, [4] for instance when their nestlings are threatened. [15] Like other robin-chats, they may mimic other birds. One individual has been noted to mimic a total of 36 bird species. [15]
The lyrebirds are large passerine birds, amongst the largest in the order. They are ground living birds with strong legs and feet and short rounded wings. They are poor fliers and rarely fly except for periods of downhill gliding. [7] The superb lyrebird is the larger of the two species. Lyrebirds measure 31 to 39 inches in length, including ...
Birds regulate the airflow through the syrinx with muscles—M. syringealis dorsalis and M. tracheobronchialis dorsalis—that control the medial and lateral labia in the syrinx, whose action may close off airflow. [2] Song may, hence, be produced unilaterally through one side of the syrinx when the labia are closed in the opposite side.