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  2. Bird vocalization - Wikipedia

    en.wikipedia.org/wiki/Bird_vocalization

    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 ...

  3. Syrinx (bird anatomy) - Wikipedia

    en.wikipedia.org/wiki/Syrinx_(bird_anatomy)

    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.

  4. Mockingbird - Wikipedia

    en.wikipedia.org/wiki/Mockingbird

    Mockingbirds are a group of New World passerine birds from the family Mimidae. They are best known for the habit of some species mimicking the songs of other birds and the sounds of insects and amphibians, [1] often loudly and in rapid succession and for being extremely territorial when raising hatchlings. Studies have shown the ability of some ...

  5. List of nocturnal birds - Wikipedia

    en.wikipedia.org/wiki/List_of_nocturnal_birds

    Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals. Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night.

  6. List of animal sounds - Wikipedia

    en.wikipedia.org/wiki/List_of_animal_sounds

    Certain words in the English language represent animal sounds: the noises and vocalizations of particular animals, especially noises used by animals for communication. The words can be used as verbs or interjections in addition to nouns, and many of them are also specifically onomatopoeic.

  7. Dawn chorus (birds) - Wikipedia

    en.wikipedia.org/wiki/Dawn_chorus_(birds)

    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).

  8. Avian sleep - Wikipedia

    en.wikipedia.org/wiki/Avian_Sleep

    Disrupting the birds' light and dark cycles can impact circadian rhythms, eventually harming sleep patterns. Biologist Thomas Raap conducted a study which suggested that exposure to ALAN affected the sleep behavior of Eurasian blue tits (Cyanistes caeruleus). [7] In this study, birds woke up earlier due to ALAN factors such as seasonal timekeeping.

  9. Mourning dove - Wikipedia

    en.wikipedia.org/wiki/Mourning_dove

    The wings make an unusual whistling sound upon take-off and landing, a form of sonation. The bird is a strong flier, capable of speeds up to 88 km/h (55 mph). [3] Mourning doves are light gray and brown and generally muted in color. Males and females are similar in appearance. The species is generally monogamous, with two squabs (young) per ...