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Jays
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Blue Jay

Blue Jay
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Aves
Order:Passeriformes
Family:Corvidae
Genera
The jays are several species of medium-sized, usually colorful and noisy passerine birds in the crow family Corvidae. The names jay and magpie are somewhat interchangeable, and the actual evolutionary relationships are rather complex. For example, the Eurasian Magpie seems more closely related to the Eurasian Jay than to the Oriental Blue and Green Magpies, whereas the Blue Jay is not closely related to either.

Systematics and species

See classification box for relevant genera links. The Crested Jay (Platylophus galericulatus) is traditionally placed here, but apparently this is not correct, as suggested by anatomical and molecular evidence. Its placement remains unresolved; it does not seem to be a corvid at all. It should be noted that according to the research of Ericson et al. (2005), jays are not a monophyletic group. Rather, they can be divided into an American and an Old World lineage (the latter including the ground jays and the Piapiac), while the gray jays of the genus Perisoreus form a group of their own. The Black Magpie, formerly believed to be related to jays, is actually a treepie.

Old World ("brown") jays Grey jays American ("blue") jays See also treepies, magpies, nutcrackers and crows.

Jays in culture

Slang

  • The word "jay" has an archaic meaning in American slang meaning a stupid or dull person, from which is derived the term jaywalking ("jay-walker". Oxford English Dictionary. Oxford University Press. 2nd ed. 1989.).

Organizational symbols

References

  • Ericson, Per G. P.; Jansén, Anna-Lee; Johansson, Ulf S. & Ekman, Jan (2005): Inter-generic relationships of the crows, jays, magpies and allied groups (Aves: Corvidae) based on nucleotide sequence data. Journal of Avian Biology 36: 222-234. PDF fulltext

External links

Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885

Typical Classes

See below

Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Aves
Linnaeus, 1758

Orders

About two dozen - see section below

Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Passeriformes
Linnaeus, 1758

Suborders
  • Acanthisitti
  • Tyranni
  • Passeri


A passerine is a bird of the giant order Passeriformes. More than half of all species of bird are passerines.
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Corvidae
Vigors, 1825

Genera

many, see article text

Corvidae is a family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies and nutcrackers (Clayton and Emery 2005, [1] ).
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genus (plural: genera) is part of the Latinized name for an organism. It is a name which reflects the classification of the organism by grouping it with other closely similar organisms.
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Garrulus
Brisson, 1760

Species

Garrulus glandarius
Garrulus lanceolatus
Garrulus lidthi

The genus Garrulus contains the Old World jays, passerine birds of the family Corvidae, and numbers only three species.
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Podoces
Fischer von Waldheim, 1821

Species
  • Podoces hendersoni
  • Podoces biddulphi
  • Podoces pleskei
  • Podoces panderi


The ground jays or ground choughs
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Ptilostomus
Swainson, 1837

Species: P. afer

Binomial name
Ptilostomus afer
(Linnaeus, 1766)

The Piapiac (Ptilostomus afer
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Perisoreus
Bonaparte, 1831

Species
  • Perisoreus canadensis
  • Perisoreus infaustus
  • Perisoreus internigrans


The genus 'Perisoreus
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Aphelocoma
Cabanis, 1851

Species

Aphelocoma californica
Aphelocoma coerulescens
Aphelocoma insularis
Aphelocoma ultramarina
Aphelocoma unicolor
and see text
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Gymnorhinus

Species: G. cyanocephalus

Binomial name
Gymnorhinus cyanocephalus
Wied, 1841


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Cyanocitta
Strickland, 1845

Species
  • Cyanocitta cristata
  • Cyanocitta stelleri


The genus Cyanocitta is a New World genus of jays, passerine birds of the family Corvidae.
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Calocitta
Gray, 1841

Species
  • Calocitta colliei
  • Calocitta formosa


Calocitta is a genus of family Corvidae (Crow-like birds). They are commonly known as magpie-jays.
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Cyanocorax
Boie, 1826

Species

17 species; see text.

The tufted jays are a genus, Cyanocorax, of New World jays, passerine birds in the crow family Corvidae.
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Cyanolyca
Cabanis, 1851

Cyanolyca is a genus of New World jays including:
  • Cyanolyca armillata Black-collared Jay
  • Cyanolyca turcosa Turquoise Jay
  • Cyanolyca viridicyana White-collared Jay

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species is one of the basic units of biological classification. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring.
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Passeriformes
Linnaeus, 1758

Suborders
  • Acanthisitti
  • Tyranni
  • Passeri


A passerine is a bird of the giant order Passeriformes. More than half of all species of bird are passerines.
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Aves
Linnaeus, 1758

Orders

About two dozen - see section below

Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Corvus
Linnaeus, 1758

Species

See text.
The true crows are large passerine birds that comprise the genus Corvus. Ranging in size from the relatively small pigeon-sized jackdaws (Eurasian and Daurian) to the Common Raven of the
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family (Latin: familia, plural familiae) is a rank, or a taxon in that rank. Exact details of formal nomenclature depend on the Nomenclature Code which applies.
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Corvidae
Vigors, 1825

Genera

many, see article text

Corvidae is a family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies and nutcrackers (Clayton and Emery 2005, [1] ).
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magpies are passerine birds of the crow family, Corvidae. The names 'jay' and 'magpie' are to a certain extent interchangeable, although this does not accurately reflect the evolutionary relationship between these birds.
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P. pica

Binomial name
Pica pica
Linnaeus, (1758)

The European Magpie (Pica pica) is a resident breeding bird throughout Europe, much of Asia, and northwest Africa.
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G. glandarius

Binomial name
Garrulus glandarius
Linnaeus, 1758

The Eurasian Jay (Garrulus glandarius
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Urocissa

Species
  • Urocissa caerulea
  • Urocissa erythrorhyncha
  • Urocissa flavirostris
  • Urocissa whiteheadi
  • Urocissa ornata


Urocissa
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Cissa
Boie, 1826

Species
  • Cissa chinensis
  • Cissa hypoleuca
  • Cissa thalassina


Cissa is a genus of short-tailed magpies that reside in the forests of tropical and sub-tropical Asia.
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C. cristata

Binomial name
Cyanocitta cristata
Linnaeus, 1758



The Blue Jay (Cyanocitta cristata
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genus (plural: genera) is part of the Latinized name for an organism. It is a name which reflects the classification of the organism by grouping it with other closely similar organisms.
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