Stewart Island shag
Stewart Island shag was the former name of a species of cormorant that was split into two species as a result of genetic studies.[1] The two resulting species are:[2]
- Otago shag, Leucocarbo chalconotus, which is endemic to coastal Otago, New Zealand
- Foveaux shag, Leucocarbo stewarti, which is endemic to Stewart Island/Rakiura and Foveaux Strait in New Zealand
Some authorities, such as BirdLife and the International Union for the Conservation of Nature, refer to these taxa as two subspecies of what they call Stewart shag.[3][4]
References
- Rawlence, Nicolas J.; Scofield, R. Paul; Spencer, Hamish G.; Lalas, Chris; Easton, Luke J.; Tennyson, Alan J.D.; Adams, Mark; Pasquet, Eric; Fraser, Cody; Waters, Jonathan M. & Kennedy, Martyn (2016). "Genetic and morphological evidence for two species of Leucocarbo shag (Aves, Pelecaniformes, Phalacrocoracidae) from southern South Island of New Zealand". Zoological Journal of the Linnean Society. 177 (3): 676–694. doi:10.1111/zoj.12376.
- "Storks, frigatebirds, boobies, cormorants, darters". International Ornithological Congress. Retrieved 29 November 2020.
- "Stewart Shag Leucocarbo chalconotus". BirdLife International. Retrieved 29 November 2020.
- BirdLife International (2018). "Stewart Shag: Phalacrocorax chalconotus". IUCN Red List of Threatened Species. 2018: e.T22696853A133556225. Retrieved 29 November 2020.
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