Biology:Canyon towhee
| Canyon towhee | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Passerellidae |
| Genus: | Melozone |
| Species: | M. fusca
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| Binomial name | |
| Melozone fusca (Swainson, 1827)
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| Synonyms | |
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The canyon towhee (Melozone fusca) is a bird of the family Passerellidae. Until 1989, the Canyon Towhee and the California towhee were considered to be a single species which was called the Brown Towhee.[1]
Taxonomy
The taxonomy of the group of towhees to which this species belongs is debated. At the higher level, some authors place the towhees in the family Fringillidae[citation needed]. Within the genus, there has been dispute about whether the canyon towhee is a distinct species from the California towhee (Melozone crissalis) found in coastal regions from Oregon and California in the United States through Baja California in Mexico. At present, molecular genetics seems to have settled this issue in favour of separation of the species.
Description
It is 19 to 25 cm (7.5 to 9.8 in) long, and has a noticeably long tail, at 8.2 to 11 cm (3.2 to 4.3 in).[2] This species weighs from 36.5 to 67 g (1 1⁄4 to 2 1⁄4 oz), though on average weigh only around 45 g (1 1⁄2 oz).[3] Among standard measurements, the wing chord is 8.2 to 10.1 cm (3.2 to 4.0 in), the bill is 1.4 to 1.7 cm (0.55 to 0.67 in) and the tarsus is 2.3 to 2.7 cm (0.91 to 1.06 in).[2] It is earthy brown in color, with somewhat lighter underparts and a somewhat darker head with a rufous cap (except that birds in central Mexico have the cap the same color as the back); there is also a slightly reddish area beneath the tail. There is little sexual dimorphism.
Distribution and habitat
The towhee is native to lower-lying areas from Arizona, southern Colorado, New Mexico and western Texas south to northwestern Oaxaca, Mexico, mostly avoiding the coasts. Its natural habitat is brush or chaparral.
Behavior
The towhee feeds on the ground or in low scrub rather than in the tree canopy. Near human habitation, it is often seen in parking lots, where it feeds on insects on the cars' grilles and takes cover under the cars when disturbed.
References
- ↑ American Ornithologists' Union (1989). "Thirty-seventh Supplement to the American Ornithologists' Union Check-list of North American Birds". Auk 109: 532–538.
- ↑ 2.0 2.1 Sparrows and Buntings: A Guide to the Sparrows and Buntings of North America and the World by Clive Byers & Urban Olsson. Houghton Mifflin (1995). ISBN:978-0395738733.
- ↑ CRC Handbook of Avian Body Masses by John B. Dunning Jr. (Editor). CRC Press (1992), ISBN:978-0-8493-4258-5.
- Zink, R. M.; Dittmann, D. L. (1991). "Evolution of brown towhees—mitochondrial-DNA evidence". The Condor (Cooper Ornithological Society) 93 (1): 98–105. doi:10.2307/1368611.
- Johnson, R. R., and L. T. Haight. 1996. Canyon Towhee (Pipilo fuscus). In The Birds of North America, No. 264 (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, PA, and The American Ornithologists' Union, Washington, D.C.
- Howell, Steve N. G.; Sophie Webb (1995). A Guide to the Birds of Mexico and Northern Central America. Oxford University Press. ISBN 0-19-854012-4. https://archive.org/details/guidetobirdsofme0000howe.
External links
- Page with photographs and recording from birdfotos.com
- North American Bird Sounds—Parulidae through Icteridae with recordings and a link to a photograph.
Wikidata ☰ Q3180746 entry
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