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jay,

common name for a number of birds of the family Corvidae (crows and jays), found in Europe, Asia, and the Americas. The best-known representatives in America are the blue jayblue jay,
common name for a familiar bird (Cyanocitta cristata) of central and E North America, allied to the crow, the raven, and the magpie, belonging to the family Corvidae. Almost a foot (30 cm) long, it is handsome and conspicuous.
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, Cyanocitta cristata, and the Canada jay. The Canada jay is gray, about 12 in. (30 cm) long, with a white throat and forehead and black nape; it has no crest. Found in northern coniferous forests and swamps, it is known for its habit of stealing bright objects, and is called locally camp robber, whisky jack, and moose bird. The common jay is of wide distribution and is hunted for game in England and Europe. The female lays from five to seven eggs per clutch, and the male helps incubate them. The Florida, or scrub, jay has blue markings and no crest. The European jay is fawn-colored, with a black and white crest and wings of black, white, and blue. Jays are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Aves, order Passeriformes, family Corvidae.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Jay

 

(Garrulus glandarius), a bird of the family Corvidae of the order Passeriformes. The jay is 34 cm long and weighs as much as 160 g. The plumage is loose and reddish gray, and the tail black. Each wing has a blue patch specked with black; the head has a crest spotted with black.

The jay is found in Europe, Asia, and northwestern Africa. In the USSR its range includes forests in the Crimea and Caucasus and forests as far north as 60°–62°N lat.; the bird wanders widely in autumn and winter. The nest is placed in a tree. A clutch contains five to seven speckled eggs, which are incubated by both the male and female for 16 or 17 days. The diet consists of seeds, berries, acorns, and insects. Largely a beneficial species, the jay consumes insects and, through its habit of storing acorns for the winter, contributes to the dispersal of the oak. However, it sometimes robs the nests of small birds.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

jay

any of various passerine birds of the family Corvidae (crows), esp the Eurasian Garrulus glandarius, with a pinkish-brown body, blue-and-black wings, and a black-and-white crest

Jay

John 1745--1829, American statesman, jurist, and diplomat; first chief justice of the Supreme Court (1789--95). He negotiated the treaty with Great Britain (Jay's treaty, 1794), that settled outstanding disputes
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
On 27 May 2015 around 1000h (Pacific Standard Time), I observed another dominant male jay from a different flock attack a similarly colored bat in the air.
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In the latest series of tests, Clayton and her colleagues provided a jay with some waxworms, a desirable treat, and offered two trays for hiding.
Over thousands of years of evolution, the jay may have played a major role in the selection of pinon seed characteristics, including its large size.
Scrub jays are particularly fond of suburban living and make their presence known in back gardens all over the West.
JAYS is in partnership with Indian distributor Ferrari Video and its retail brand Headphone Zone.
LWIB saw the Toronto Blue Jays set a franchise record for lowest one game attendance when the KC Royals visited Rogers Centre April 19.