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The most commonly cited human threat to birds is habitat loss. [338] Other threats include overhunting, accidental mortality due to collisions with buildings or vehicles, long-line fishing bycatch, [339] pollution (including oil spills and pesticide use), [340] competition and predation from nonnative invasive species, [341] and climate change.
Bird conservation. The extinction of the dusky seaside sparrow was caused by habitat loss. Bird conservation is a field in the science of conservation biology related to threatened birds. Humans have had a profound effect on many bird species. Over one hundred species have gone extinct in historical times, although the most dramatic human ...
Cranes are a type of large bird with long legs and necks in the biological family Gruidae of the order Gruiformes. The family has 15 species placed in four genera which are Antigone, Balearica, Leucogeranus, and Grus. [1] They are large birds with long necks and legs, a tapering form, and long secondary feathers on the wing that project over ...
Ornithology is a branch of zoology that concerns the study of birds. [ 1 ] Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. [ 2 ] It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support.
Pteroglossus. Ramphastos. Selenidera. Toucans (/ ˈtuːkæn /, UK: /- kən /) are Neotropical birds in the family Ramphastidae. The Ramphastidae are most closely related to the Toucan barbets. They are brightly marked and have large, often colorful bills. The family includes five genera and over 40 different species.
A ratite (/ ˈrætaɪt /) is any of a group of mostly flightless birds within the infraclass Palaeognathae. [3] They are mostly large, long-necked, and long-legged, the exception being the kiwi, which is also the only nocturnal extant ratite. The understanding of relationships within the paleognath clade has been in flux.
A water bird, alternatively waterbird or aquatic bird, is a bird that lives on or around water. In some definitions, the term water bird is especially applied to birds in freshwater ecosystems, although others make no distinction from seabirds that inhabit marine environments. Some water birds (e.g. wading birds) are more terrestrial while ...
The indigo bunting is a small bird, measuring 11.5–13 cm (4.5–5.1 in) in length. It displays sexual dimorphism in its coloration; the male is vibrant blue in the summer, with brightly colored plumage during the breeding season to attract a mate. It is brown during the winter months, while the female is brown year-round.
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