Olive-backed oriole

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Olive-backed oriole
Oriolus sagittatus -Canberra, Australia-8a.jpg
In Canberra, Australia
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Oriolidae
Genus: Oriolus
Species: O. sagittatus
Binomial name
Oriolus sagittatus
(Latham, 1801)
Synonyms
  • Coracias Sagittata

The olive-backed oriole (Oriolus sagittatus), or white-bellied oriole, is a very common medium-sized passerine bird native to northern and eastern Australia and south-central New Guinea. The most wide-ranging of the Australasian orioles, it is noisy and conspicuous.

Taxonomy and systematics

The olive-backed oriole was originally described in the genus Coracias by the English ornithologist John Latham in 1801.[2]

Subspecies

Four subspecies are recognized:[3]

  • O. s. magnirostris - van Oort, 1910: Found in south-central New Guinea
  • O. s. affinis - Gould, 1848: Originally described as a separate species. Found in north-western and north-central Australia
  • O. s. grisescens - Schodde & Mason, IJ, 1999: Found on Cape York Peninsula (north-eastern Australia) and islands of the Torres Strait
  • O. s. sagittatus - (Latham, 1801): Found in eastern Australia

Description

Not bright in colour, it is olive-backed with small dark streaks, with a light chest having black streaks. Females have cinnamon-edged wings and both sexes have reddish bills and eyes.

Distribution and habitat

Where the green oriole specialises in damp, thickly vegetated habitats in the tropical far north, the olive-backed oriole is more versatile, preferring more open woodland environments, and tolerating drier climates (but not desert). While common to very common in the north, olive-backed orioles are less frequently seen in the south, but nevertheless reach as far as south-eastern South Australia. Their range is from the very north of Western Australia across the east and south coasts to Victoria and the corner of South Australia. Most birds breed during the tropical wet season, but some migrate south to breed in the southern summer.

Nesting, Lake Samsonvale, SE Queensland

References

  1. ^ BirdLife International (2016). "Oriolus sagittatus". The IUCN Red List of Threatened Species. IUCN. 2016: e.T22706362A94065594. doi:10.2305/IUCN.UK.2016-3.RLTS.T22706362A94065594.en. Retrieved 15 January 2018. 
  2. ^ Latham, John (1801). Supplementum indicis ornithologici sive systematis ornithologiae (in Latin). London: Leigh & Sotheby. p. xxvi. 
  3. ^ "IOC World Bird List 7.1". IOC World Bird List Datasets. doi:10.14344/ioc.ml.7.1. 
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