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The magenta petrel (Pterodroma magentae), or Chatham Island tāiko, is a small seabird in the gadfly petrel genus, Pterodroma.Found exclusively on Chatham Island, New Zealand, it is one of the rarest birds in the world, believed to be extinct for over 100 years before its rediscovery in the 1970s.
Based on Austin (1996), Bretagnolle et al. (1998), Nunn & Stanley (1998) and Brooke (2004), several changes have been made from the more traditional taxonomy. The two species in the genus Bulweria are no longer considered close to the rest of the gadfly petrels; several more gadfly petrels are removed from Pterodroma and placed in Pseudobulweria (allied to the shearwaters), and the Kerguelen ...
There are less than 200 Magenta petrels breeding on the Chatham Islands, [93] only 130 to 160 Zino's petrels [94] and only 170 Amsterdam albatrosses. [95] Only one species is thought to have become extinct since 1600, the Guadalupe storm petrel of Mexico, [96] although a number of species had died out before this.
The Tuanuis assisted ornithologist David Crockett in discovering the magenta petrel (Pterodroma magentae), or Chatham Island tāiko, on the land in 1978. This small burrow-nesting seabird had been considered extinct for over 100 years, and remains critically endangered .
Magenta petrel, Pterodroma magentae – south Pacific Ocean, but poorly known; Murphy's petrel, Pterodroma ultima – east and central Pacific Ocean; Soft-plumaged petrel, Pterodroma mollis – Atlantic Ocean, Indian Ocean and margins of western Pacific Ocean; Zino's petrel or Madeira petrel, Pterodroma madeira – east Atlantic Ocean
Pterodroma is a genus of seabirds in the bird family Procellariidae, part of the Gadfly petrel group. Wikimedia Commons has media related to Pterodroma . Pages in category "Pterodroma"
Critically endangered (CR) species face an extremely high risk of extinction in the wild. As of December 2019, the International Union for Conservation of Nature (IUCN) listed 223 critically endangered avian species, including 19 which are tagged as possibly extinct or possibly extinct in the wild.
The modern swamp harrier occurs all over New Zealand today. Even though the bones of its females can be mistaken for those of Eyles's harrier's males (as they differ little except in stoutness), all swamp harrier remains from the islands that have been studied in detail are some 1000 years old at most.