Could an NZ endemic lose their status?

General birdwatching discussion, help with bird identification, and all other things relating to wild birds and birding in NZ that don't fit in one of the other forums.
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Oscar Thomas
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Could an NZ endemic lose their status?

Postby Oscar Thomas » Sat Dec 14, 2019 7:05 am

Just got me thinking that if we defined endemic species as one that 'breeds naturally only in New Zealand', what happens if they decide to establish a colony outside New Zealand? Consider the Salvin's Albatross (Thalassarche salvini) for example, four pairs were reported breeding on Ile des Pingouins, Iles Crozet in November 1986 (possibly later), in the southern Indian Ocean. This species is currently regarded as having a status of endemic to New Zealand. Theoretically if more and more pairs established on Ile des Pingouins and formed a fully-fledged colony, could this change to native? Or am I overthinking this?
https://www.instagram.com/oscarkokako/ - NZ List (211) Common Greenshank, Riverton Estuary
fras444
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Re: Could an NZ endemic lose their status?

Postby fras444 » Sat Dec 14, 2019 6:23 pm

I believe the white-fronted tern was one of our first endemic species we lost to Australia when birds were found nesting in the bass straight in tasmania
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Oscar Thomas
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Great-winged petrel

Postby Oscar Thomas » Wed Dec 18, 2019 12:21 pm

Thank you - Somewhat related, is anyone aware if the Great-winged petrel (Pterodroma macroptera or once P. m. macroptera) has ever been confirmed from New Zealand waters apart from a couple anecdotal eBird records?
https://www.instagram.com/oscarkokako/ - NZ List (211) Common Greenshank, Riverton Estuary

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