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n. pl. jun·cos or jun·coes
Any of various sparrows of the genus Junco of North and Central America, having predominantly gray plumage, a gray or black head, and white outer tail feathers.

[Ultimately (either via Early Modern English junco, the reed bunting (Emberiza schoeniclus, which inhabits marshes and reedbeds), or obsolete Spanish junco ave, a bird of the West Indies with a very long and narrow tail) from Spanish junco, rush (plant of the genus Juncus), from Old Spanish, from Latin iuncus; see jonquil.]


n, pl -cos or -coes
(Animals) any North American bunting of the genus Junco, having a greyish plumage with white outer tail feathers
[C18: from Spanish: a rush, a marsh bird, from Latin juncus rush]


(ˈdʒʌŋ koʊ)

n., pl. -cos.
any of several small, gray or gray and brown North American finches of the genus Junco, esp. J. hyemalis, a common winter resident of the U.S. Also called snowbird.
[1700–10; < Sp: rush, bird found in rush beds < Latin juncus rush]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.junco - small North American finch seen chiefly in winterjunco - small North American finch seen chiefly in winter
finch - any of numerous small songbirds with short stout bills adapted for crushing seeds
genus Junco - American finches
dark-eyed junco, Junco hyemalis, slate-colored junco - common North American junco having grey plumage and eyes with dark brown irises
References in periodicals archive ?
As for juncos specifically, these migratory birds can fly 200 or more miles a night, making them highly capable of spreading bacteria over large swaths of land.
Thornburg previously worked for 16 years at Amgen in a variety of senior level positions, including executive director, Quality Site Head at its Colorado facility as well as executive director, Quality Control, for its manufacturing site in Juncos, Puerto Rico.
For the rest of that decade the Juncos were also pressed into service - requested, as often as not - as support band for major American blues artists who, for reasons of economy, could not bring their regular US bands with them.
Martinez-Agosto was born in Juncos, Puerto Rico, a son of Manuel and Rose (Agosto) Martinez.
Amgen is leading the race to get to market the first in a new group of cardio drugs that drastically reduces bad cholesterol, and plans to make evolucumab (formerly AMG 145) at its Juncos plant, reports Caribbean Business (June 5, 2014).
the many cunning birds that kill Nestlings, sparrows, juncos for
In dark-eyed juncos (Junco hyemalis), individuals that were sired by a male other than their mother's pair-bonded partner grew up to have higher reproductive success than did individuals whose mother stayed faithful to her partner.
a Clondalkin Group Company, has acquired Lehigh Press, located in Juncos, Puerto Rico.
Esta actividad fue auspiciada por el Departamento de Cultura y Turismo del Municipio de Juncos y por su alcalde, Alfredo Alejandro Carrion.
Los humedales se construyen utilizando diferentes especies de plantas que abundan en la zona: totoras, repollitos de agua, camalotes o juncos.
The feeding habits and preferences of four species of songbirds, northern cardinals (Cardinalis cardinalis), song sparrows (Melospiza melodia), dark-eyed juncos (Junco hyemalis), and white-throated sparrows (Zonotrichia albicollis) were examined from November to February of 1980-81, 1981-82, and 1982-83.