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LC
Christmas Shearwater Puffinus nativitatis

Justification
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Taxonomic source(s)
Brooke, M. de L. 2004. Albatrosses and Petrels Across the World. Oxford University Press, Oxford.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
Turbott, E. G. 1990. Checklist of the birds of New Zealand. Ornithological Society of New Zealand, Wellington.

Distribution and population
The Christmas Island Shearwater nests on remote islands in the central Pacific, from the Hawaiian Islands (USA) in the north, south to Phoenix Island (Republic of Kiribati), and east to the Marquesas Islands, French Polynesia and Easter Island (to Chile). Outside the breeding season it ranges across the Pacific, having been recorded off the coasts of Mexico and northern Chile in the east, to the Bonin Islands (Japan) in the west (del Hoyo et al. 1992).

Population justification
Brooke (2004) estimated the global population to number around 150,000 individuals.

Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Ecology
This species is marine and pelagic, occuring over warm waters and generally keeping away from land except near colonies. Its diet comprises mostly of fish and squid with only minor proportions of crustaceans. Prey is caught mainly by pursuit-plunging and pursuit-diving, but also by surface-seizing. Feeding in association with other shearwaters and also noddies (Anous) has been seen. Its breeding season is variable, beginning in March in Hawaii. Individuals form colonies on slopes among rocks or in lava fields on oceanic islands (del Hoyo et al. 1992).

References
Brooke, M. De L. 2004. Albatrosses and petrels across the world. Oxford University Press, Oxford.

del Hoyo, J.; Elliot, A.; Sargatal, J. 1992. Handbook of the Birds of the World, vol. 1: Ostrich to Ducks. Lynx Edicions, Barcelona, Spain.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Ekstrom, J., Butchart, S., Newton, P., Calvert, R.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Puffinus nativitatis. Downloaded from http://www.birdlife.org on 15/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/09/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Christmas shearwater (Puffinus nativitatis) 0

Key facts
Current IUCN Red List category Least Concern
Family Procellariidae (Petrels, Shearwaters)
Species name author Streets, 1877
Population size mature individuals
Population trend Stable
Distribution size (breeding/resident) 50,900,000 km2
Country endemic? No
Links to further information
- Additional Information on this species