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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.

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.

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
References in periodicals archive ?
The jay first selected and prepared an object that could readily be used as a spear, and then lunged at the crow with the spear, the crow startled the jay which then dropped the twig.
When the hoarders revisited the trays in private, the birds who'd been watched by a dominant bird during the first episode shifted more treats to other hiding places than did birds watched by a subordinate, a mate, or no other jay.
A complex and fascinating interdependent relationship exists between the pine and the bird (including both the gregarious pinon jay and the more solitary scrub jay).
If you observe jays even briefly, you can't help but notice how clever they are.
Clayton's researchers this time let their jays cache perishable crickets and long-lasting nuts in two trays.
Seeking to leverage and revitalize the "can't stop eating em" equity that the Jays brand has built, Chicago-based advertising agency, Schafer Condon Carter, created television and radio spots that will begin airing August 12th on cable TV and in September on the radio.
A slew of defensive gems in the early innings by the Blue Jays kept the Angels from mounting a scoring rally.
In the lab, the researchers offered seven scrub jays the irresistible larvae of wax moths.
Blue Jays starter Josh Towers gave up one run in 6 2/3 innings, got remarkable defense behind him and 11 hits from the Toronto offense in the season series finale between the teams.
Scrub jays can remember when they cached a particular kind of food in a particular place, report Nicola S.
TORONTO - It wasn't so much a walk-off victory for the Toronto Blue Jays as it was a walk-off loss for the Angels.
Roy Halladay, who had won 15 consecutive decisions before losing Friday, couldn't do to the Angels what Corey Thurman did in his first start of the season, which is why the Toronto Blue Jays came away with a 6-1 victory over the Angels on Saturday in front of 43,087 at Edison Field.