Junco

Life-forms

Superregnum: Eukaryota
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Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
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Cladus: Australaves
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Passeroidea

Familia: Passerellidae
Genus: Junco
Species: J. bairdi – J. hyemalis - J. insularis - J. phaeonotus - J. vulcani

Name

Junco Wagler, 1831

Typus: Junco phaeonotus Wagler, 1831

Synonyms

Struthus Bonaparte, 1838 Geogr.Comp.ListBirdsEur.N.Am. p. 31 BHL

References
Primary references

Wagler, J.G. 1831. Einige Mittheilungen über Thiere Mexicos. Isis von Oken 24: 510–535. BHL (German) Reference page. col. 526 BHL

Additional references

Milá, B., Aleixandre, P., Alvarez-Nordström, S. & McCormack, J. 2016. More than meets the eye: lineage diversity and evolutionary history of dark-eyed and yellow-eyed juncos. In Snowbird: Integrative biology and evolutionary diversity in the junco. Ellen D. Ketterson and Jonathan W. Atwell (Editors), Chicago University Press, Chicago. DOI: 10.7208/chicago/9780226330808.003.0008 Article summary Reference page.

Vernacular names
Deutsch: Junko
English: Junco
suomi: Junkot
français: Junco
magyar: Junco
русский: Юнко
Türkçe: Junko

A junco (/ˈdʒʌŋkoʊ/), genus Junco, is a small North American bird in the New World sparrow family Passerellidae. Junco systematics are still confusing after decades of research, with various authors accepting between three and twelve species. Despite having a name that appears to derive from the Spanish term for the plant genus Juncus (rushes), these birds are seldom found among rush plants, which prefer wet ground, while juncos prefer dry soil.

Their breeding habitat is coniferous or mixed forest areas throughout North America, ranging from subarctic taiga to high-altitude mountain forests in Mexico and Central America south to Panama. Northern birds usually migrate farther south; southern populations are permanent residents or altitudinal migrants, moving only a short distance downslope to avoid severe winter weather in the mountains.

These birds forage on the ground. In winter, they often forage in flocks. They eat mainly insects and seeds. They usually nest in a well-hidden location on the ground or low in a shrub or tree.
Taxonomy

The genus Junco was introduced in 1831 by the German naturalist Johann Georg Wagler for a single species, the yellow-eyed junco.[1] The yellow-eyed junco is therefore now the type species.[2] The genus name is from Latin iuncus meaning 'rush'.[3]

The genus contains five species:[4]

Common name	Scientific name	Subspecies	Distribution
dark-eyed junco	Junco hyemalis	gray-headed dark-eyed junco (J. h. caniceps) – sometimes considered either a separate species (J. caniceps) or a separate species with two subspecies (also see fourth line below). Caniceps in Latin means gray-headed. Oregon dark-eyed juncos, J. h. oreganus subspecies group – sometimes considered a separate species (J. oreganus) with either eight or nine subspecies (also see third line below) pink-sided dark-eyed junco (J. h. mearnsi) – sometimes included within the J. h. oreganus subspecies group red-backed dark-eyed junco (J. h. dorsalis) – sometimes included within the J. h. caniceps subspecies group, or sometimes considered either a separate species (J. dorsalis) or a separate species (J. caniceps) with two subspecies (also see first line above) slate-colored dark-eyed juncos, J. h. hyemalis subspecies group — sometimes considered a separate species with either two or three subspecies (one subspecies in this group, J. h. cismontanus, is possibly a hybrid between another subspecies in this group (J. h. hyemalis) and a subspecies in the oreganus subspecies group (J. h. oreganus)) white-winged dark-eyed junco (J. h. aikeni) – sometimes considered a separate species	much of temperate North America
Guadalupe junco	Junco insularis		once the entirety of Guadalupe Island, now restricted to the northern part
yellow-eyed junco	Junco phaeonotus	Arizona yellow-eyed junco (J. p. palliatus) Mexican yellow-eyed junco (J. p. phaeonotus) Chiapas yellow-eyed junco (J. p. fulvescens) Guatemalan yellow-eyed junco (J. p. alticola)	from the southwestern United States south to Mexico and western Guatemala
Baird's junco	Junco bairdi		the Sierra de la Laguna of the southern Baja California peninsula in Baja California Sur, Mexico
volcano junco	Junco vulcani		Costa Rica and western Panama

References

Wagler, Johann Georg (1831). "Einige Mittheilungen über Thiere Mexicos". Isis von Oken (in German and Latin). 1831. Col 510–535 [526].
Paynter, Raymond A. Jr, ed. (1970). Check-List of Birds of the World. Vol. 13. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 62.
Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 212. ISBN 978-1-4081-2501-4.
Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2022). "New World Sparrows, Bush Tanagers". IOC World Bird List Version 12.1. International Ornithologists' Union. Retrieved 4 February 2022.

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