IUCN threat status:

Near Threatened (NT)


Read full entry

Range Description

Pterodroma ultima breeds in the Pitcairn Islands (to UK), the Tuamotu Archipelago, the Austral Islands (Garnett 1984) and the Gambier Islands (French Polynesia) (Thibault and Bretagnolle 1999) and perhaps in the Cook Islands. In the Pitcairns, an estimated 2,500 ( 500) breed on Henderson, 12,500 ( 2,500) on Oeno, and 250,000 ( 29,000) on Ducie (Brooke 1995a). In the Tuamotus, colonies occur on Mururoa and Fangataufa (Holyoak and Thibault 1984), although these may have disappeared owing to nuclear tests and the recent construction of an airstrip (V. Bretagnolle in litt. 1999, J.-C. Thibault in litt. 2000). In the Australs, it breeds only on a limited number of islets off Rapa where the population was estimated at 10-100 pairs in 1990 (Thibault and Varney 1991). In the Gambiers, proof of breeding was found for the first time on Manui and numbers were estimated at 5-10 pairs (Thibault and Bretagnolle 1999). In the Cook Islands, a specimen was collected probably from Rarotonga or perhaps one of the other southern Cook Islands, between c.1899 and 1904 (Gill 1996). In 2009, 2 pairs were reported nesting on Easter Island (M. Martin in litt. 2011). Non-breeding dispersal is poorly known but mostly north as far as north-west Hawaiian chain in west, yet frequently seen in eastern tropical Pacific as far as Californian current.


Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!