View source for Biology:White-winged junco

{{Short description|Subspecies of bird}}
{{Subspeciesbox
| image = NSRW White-Winged Junco.png
| status = T4
| status_system = TNC
| status_ref = &nbsp;<ref>{{cite web |url=http://export.nbii.gov/xml/natureserv/html/Emberizidae/0/ELEMENT_GLOBAL_2_103742.html |title=Species Profile for White-winged Junco (''Junco hyemalis aikeni'') |publisher=[[Organization:NatureServe|NatureServe]] |accessdate=June 8, 2010}}</ref>
| genus = Junco
| species = hyemalis
| species_link = Dark-eyed junco
| subspecies = aikeni
| authority =  Ridgway, 1873
| synonyms = ''Junco aikeni''
}}

The '''white-winged junco''' (''Junco hyemalis aikeni'') is a [[Biology:Subspecies|subspecies]] of the [[Biology:Dark-eyed junco|dark-eyed junco]]. It is superficially similar to the slate-colored juncos. It was formerly classified as a separate species.

It is a common [[Biology:Endemism|endemic]] breeder in the Black Hills area of South Dakota, Wyoming, Nebraska, and Montana, and winters south along the Front Range to northeastern New Mexico.<ref>Sibley (2000): pp.500-502, CLO (2002)</ref>

''Junco hyemalis aikeni'' resembles the slate-colored juncos, but is larger, lighter gray (the head plumage contrasting with the dark lores), has much more white in the tail, and has a larger, longer bill that often has a bluish cast. Females are paler and washed brownish. Most fresh (fall/winter) individuals have the white wingbars that give this taxon its common name, but this feature is not always present, especially in spring and summer on females, as the white tips to the wing coverts easily wear off.{{Citation needed|date=April 2008}} About one slate-colored junco in 200 has wing bars as bold as those of a fresh white-winged junco. Therefore, using wingbars alone to identify a bird as a white-winged junco outside the breeding range is ill-advised; identifications must be based on all the relevant characteristics.<ref>Sibley (2000)</ref>

==Notes==
{{reflist}}

==References==
* {{aut|[[Organization:Cornell Lab of Ornithology|Cornell Lab of Ornithology]] (CLO)}} (2002): Bird Guide - [http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Dark-eyed_Junco_dtl.html Dark-eyed junco]. Retrieved 2007-JAN-20.
* {{aut|Sibley, David Allen}} (2000): ''The Sibley Guide to Birds''. Alfred A. Knopf, New York. <small>{{ISBN|0-679-45122-6}}</small>

{{Taxonbar|from=Q7994394}}

[[Category:Junco]]
[[Category:Subspecies]]
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{{Sourceattribution|White-winged junco|1}}