Cassin's vireo
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (August 2020) |
Cassin's vireo | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Vireonidae |
Genus: | Vireo |
Species: | V. cassinii
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Binomial name | |
Vireo cassinii Xántus, J, 1858
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Cassin's vireo (Vireo cassinii) is a small North American songbird, ranging from southern British Columbia in Canada through the western coastal states of the United States. This bird migrates, spending the winter from southern Arizona (the Sonoran Desert) to southern Mexico.
The vireo is 11–14 cm (4–6 inches) in length, with a gray head, back, and flanks, and whitish underparts. It has solid white "spectacles" and white wing bars.
The song, given persistently, consists of short, rough whistled phrases of several notes, spaced about 2 seconds apart. The phrases often alternate ending on a high note and a low note, giving an impression of question and answer.
It prefers open woodlands of the western mountains and foothills. It is usually found in the middle to lower portions of the forest canopy, where it slowly and deliberately forages for insects among the foliage.
Cassin's vireo builds a cup nest out of bark strips and down in the fork of a twig. It lays 2 to 5 white eggs with some brown spots.
This species was formerly considered to belong to the same species as the plumbeous vireo and blue-headed vireo. At that time, this complex of species was referred to as the "solitary vireo".
This vireo is named after the ornithologist John Cassin.
References
- ^ BirdLife International (2016). "Vireo cassinii". IUCN Red List of Threatened Species. 2016: e.T22705228A94006862. doi:10.2305/IUCN.UK.2016-3.RLTS.T22705228A94006862.en. Retrieved 25 September 2021.
External links
- Cassin's Vireo species account Cornell Lab of Ornithology
- Cassin's Vireo at USGS
- Article & RangeMaps InfoNatura NatureServe
- Cassin's Vireo photo gallery VIREO
- Cassin's Vireo videos on the Internet Bird CollectionError: "Q1588260" is not a valid Wikidata entity ID.
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- IUCN Red List least concern species
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- Vireo (genus)
- Native birds of the West Coast of the United States
- Birds of the Sierra Nevada (United States)
- Fauna of the Sonoran Desert
- Fauna of the Lower Colorado River Valley
- Birds of Mexico
- Birds described in 1858
- Taxa named by John Xantus