Viherviirikaija Sisällysluettelo Koko ja ulkonäkö | Esiintyminen | Elinympäristö | Lisääntyminen | Ravinto | Lähteet | NavigointivalikkoInfobox OKNimi-testi OKIUCN-testi OKWorld Parrot TrustArkive Prioniturus luconensis

Erittäin uhanalaiset lajitViirikaijatUhanalaiset linnut


Erittäin uhanalainenWikispecies-logo.svgViherviirikaija WikispeciesissäFilippiineilläkaijalajiviirikaijoillaFilippiinienLuzonillaMarinduquellamaissipeltojenbanaaniariisiä
































Viherviirikaija
Uhanalaisuusluokitus

Erittäin uhanalainen [1]



Erittäin uhanalainen


Tieteellinen luokittelu
Domeeni:
Aitotumaiset Eucarya
Kunta:
Eläinkunta Animalia
Pääjakso:
Selkäjänteiset Chordata
Alajakso:
Selkärankaiset Vertebrata
Luokka:
Linnut Aves
Lahko:
Papukaijalinnut Psittaciformes
Heimo:
Kaijat Psittaculidae
Suku:
Viirikaijat Prioniturus
Laji:
luconensis
Kaksiosainen nimi

Prioniturus luconensis
Steere, 1890


Katso myös

 Wikispecies-logo.svg Viherviirikaija Wikispeciesissä



Infobox OKNimi-testi OKIUCN-testi OK

Viherviirikaija (Prioniturus luconensis) on Filippiineillä elävä kaijalaji.




Sisällysluettelo





  • 1 Koko ja ulkonäkö


  • 2 Esiintyminen


  • 3 Elinympäristö


  • 4 Lisääntyminen


  • 5 Ravinto


  • 6 Lähteet




Koko ja ulkonäkö |


Viherviirikaija on noin 29 cm pitkä. Kuten kaikilla viirikaijoilla, on silläkin pidentyneet keskimmäiset pyrstösulat, joiden päässä on ikään kuin lusikka tai lasta. Sen höyhenpuku on vihreä, tummempi selkäpuolelta ja siipien yläpeitinhöyhenistä. Pidentyneet pyrstösulat ovat mustat ja sinikiiltoiset. Sukupuolet ovat muuten samannäköisiä mutta naaras on kauttaltaan tummemman vihreä. Nokka on vaalean siniharmaa, iiris tummanruskea ja jalat siniharmaat. Nuori lintu muistuttaa aikuista mutta siltä puuttuvat pyrstösulkien "lusikat".



Esiintyminen |


Viherviirikaija elää Filippiinien pohjoisella saarella Luzonilla ja mahdollisesti Marinduquella, jossa se aikaisemmin oli yleinen mutta josta se saattaa olla hävinnyt. Sen populaatio on kooltaan 2 500–10 000 yksilöä. Lajin kanta on voimakkaasti taantunut, pääasiassa lemmikiksi pyynnin ja metsien hakkuiden seurauksena.



Elinympäristö |


Laji elää alavien maiden metsissä, usein maissipeltojen tuntumassa 300–1 000 m:n korkeudella merenpinnasta.



Lisääntyminen |


Lajin pesintä tunnetaan erittäin puutteellisesti. Pesintää tapahtuu ainakin huhti-toukokuussa.



Ravinto |


Viherviirikaija syö hedelmiä (eritoten banaania), siemeniä, viljaa, riisiä sekä maissin kukkia ja siemeniä.



Lähteet |


  • Forshaw, Joseph M. & Cooper, William T. 1977: Parrots of the World. - T.F.H. Publications, Inc. New Jersey. ISBN 0-87666-959-3

  • World Parrot Trust


  • Arkive (englanniksi)


  1. ↑ BirdLife International: Prioniturus luconensis IUCN Red List of Threatened Species. Version 2014.3. 2014. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 7.2.2015. (englanniksi)







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