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An audio recording of a house sparrow. The house sparrow (Passer domesticus) is a bird of the sparrow family Passeridae, found in most parts of the world. It is a small bird that has a typical length of 16 cm (6.3 in) and a mass of 24–39.5 g (0.85–1.39 oz).
A flock of auklets exhibit swarm behaviour. Swarm behaviour, or swarming, is a collective behaviour exhibited by entities, particularly animals, of similar size which aggregate together, perhaps milling about the same spot or perhaps moving en masse or migrating in some direction.
Old World sparrows are a group of small passerine birds forming the family Passeridae. They are also known as true sparrows , a name also used for a particular genus of the family, Passer . [ 1 ] They are distinct from both the New World sparrows , in the family Passerellidae , and from a few other birds sharing their name, such as the Java ...
Group living provides the presence of social information within the group, allowing both male and female members to find and select potential mating partners. Alongside this, living in a group allows for higher reproductive success as individuals have access to a greater number of potential mates, and the possibility to choose between them. [1]
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STRUCTURE OF SONGS AND ORGANIZATION OF SINGING IN FOX SPARROWS BREEDING IN NORTHERN UTAH AND SOUTHERN IDAHO. Utah State University, United States—Utah. Zink RM. Ph.D. (1983). PATTERNS AND EVOLUTIONARY SIGNIFICANCE OF GEOGRAPHIC VARIATION IN THE SCHISTACEA GROUP OF THE FOX SPARROW (PASSERELLA ILIACA) (OREGON, NEVADA, CALIFORNIA). University of ...
Galahs gathering for communal roost, Karratha (). Communal roosting is an animal behavior where a group of individuals, typically of the same species, congregate in an area for a few hours based on an external signal and will return to the same site with the reappearance of the signal.
The Old World sparrow genus Passer is a group of small passerine birds that is believed to have originated in Africa, and which contains 15–25 species depending on the authority. [10] Its members are typically found in open, lightly wooded, habitats, although several species, notably the house sparrow (P. domesticus) have adapted to human ...