Biology:Jay

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Short description: Bird of the crow family
Biology:Jay
Eurasian jay (Garrulus glandarius)
Eurasian jay (Garrulus glandarius)
Scientific classificationEdit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Superfamily: Corvoidea
Family: Corvidae
Genera

A jay is a member of a number of species of medium-sized, usually colorful and noisy, passerine birds in the crow family, Corvidae. The evolutionary relationships between the jays and the magpies are rather complex. For example, the Eurasian magpie seems more closely related to the Eurasian jay than to the East Asian blue and green magpies, whereas the blue jay is not closely related to either. The Eurasian jay distributes oak acorns, contributing to the growth of oak woodlands over time.

Systematics and species

Jays are not a monophyletic group. Anatomical and molecular evidence indicates they can be divided into a New World and an Old World lineage (the latter including the ground jays and the piapiac), while the grey jays of the genus Perisoreus form a group of their own.[1] The black magpies, formerly believed to be related to jays, are classified as treepies.

Old World ("brown") jays

Image Genus Living species
Peanut Thief (7184679351).jpg Garrulus Brisson, 1760
Turkestan Ground-Jay.jpg Podoces Fischer von Waldheim, 1821 - Ground jays
Ptilostomus afer Maroua.jpg Ptilostomus Swainson, 1837

Grey jays

Image Genus Living species
Perisoreus canadensis mercier2.jpg Perisoreus Bonaparte, 1831 - Grey jays

New World jays

Image Genus Living species
Aphelocoma insularis Bouton 2.jpg Aphelocoma Cabanis, 1851 - Scrub-jays
  • Florida scrub-jay, Aphelocoma coerulescens
  • Island scrub-jay, Aphelocoma insularis
  • California scrub-jay, Aphelocoma californica
  • Woodhouse's scrub-jay, Aphelocoma woodhouseii
  • Transvolcanic jay, Aphelocoma ultramarina
  • Mexican jay, Aphelocoma wollweberi
  • Unicolored jay, Aphelocoma unicolor
Gymnorhinus cyanocephalus1.jpg Gymnorhinus Wied-Neuwied, 1841
Bluejay (Cyanocitta cristata) (1547) - Relic38.jpg Cyanocitta Strickland, 1845
Black-throated Magpie-Jay (Calocitta colliei) (8079391079) (cropped).jpg Calocitta G.R. Gray, 1841 - Magpie-jays
Cyanocorax luxuosus calling.jpg Cyanocorax F. Boie, 1826
Turquoise jay.jpg Cyanolyca Cabanis, 1851

In culture

Slang

The word jay has an archaic meaning in American slang meaning a person who chatters impertinently.[2][3]

The term jaywalking was coined in the first decade of the 1900s to label persons crossing a busy street carelessly and becoming a traffic hazard.[4] The term began to imply recklessness or impertinent behavior as the convention became established.[5]

In January 2014, Canadian author Robert Joseph Greene embarked on a lobbying campaign among ornithologists in Europe and North America to get Merriam-Websters Dictionary to have a "Jabber of Jays" as an official term under bird groups.[6][7]

References

  1. Ericson, Per G. P.; Jansén, Anna-Lee; Johansson, Ulf S.; Ekman, Jan (May 2005). "Inter-generic relationships of the crows, jays, magpies and allied groups (Aves: Corvidae) based on nucleotide sequence data". Journal of Avian Biology 36 (3): 222–234. doi:10.1111/j.0908-8857.2001.03409.x. http://www.nrm.se/download/18.4e32c81078a8d9249800021299/Corvidae%5B1%5D.pdf PDF fulltext
  2. "Jay". freedictionary.com. http://www.thefreedictionary.com/Jay. "An overly talkative person; a chatterbox." 
  3. "Definition of Jay by Merriam-Webster". Merriam-Webster, Inc.. http://www.merriam-webster.com/dictionary/jay. 
  4. "Definition of Jaywalker by Merriam-Webster". Merriam-Webster, Inc.. http://www.merriam-webster.com/dictionary/jaywalker. 
  5. jay-walker (3rd ed.), Oxford University Press, September 2005, http://oed.com/search?searchType=dictionary&q=jay-walker  (Subscription or UK public library membership required.)
  6. "Writer lobbies for new word to describe jays". Vancouver Courier. January 2, 2014. http://www.vancourier.com/Writer-lobbies-for-new-word-to-describe-jays-1.776734/. 
  7. "British Ornithologists' Union: What say ye countrymen to a jabber of jays?". Community News. January 6, 2014. http://www.bou.org.uk/what-say-ye-countrymen-to-a-jabber-of-jays/#comments/. 

External links