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 Calonectris diomedea

This taxon is Not Recognised as a species by BirdLife International.

Taxonomic source(s)
AOU. 1998. Check-list of North American birds. American Ornithologists' Union, Washington, D.C.

Taxonomic note
Calonectris diomedea and C. borealis (del Hoyo and Collar 2014) were previously lumped as C. diomedea following Sibley and Monroe (1990, 1993), which was also formerly lumped with C. edwardsii following Hazevoet (1995), contra Brooke (2004).

Further web sources of information
Additional information is available on the distribution of the Cory's Shearwater from the Global Procellariiform Tracking Database (

Detailed species account from Birds in Europe: population estimates, trends and conservation status (BirdLife International 2004)

Recommended citation
BirdLife International (2015) Species factsheet: Calonectris diomedea. Downloaded from on 04/10/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from on 04/10/2015.

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 - Cory's shearwater (Calonectris diomedea)

Key facts
Current IUCN Red List category Not Recognised
Family Procellariidae (Petrels, Shearwaters)
Species name author (Scopoli, 1769)