• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
Brooke, M. de L. 2004. Albatrosses and Petrels Across the World. Oxford University Press, Oxford.
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.

Population justification: Brooke (2004) estimated the global population to number at least 3,000,000 individuals.

Trend justification: Analysis of the proportion of Blue Petrels in skua diets by Cerfonteyn and Ryan (2016) suggests that despite the initial rapid increase in breeding success, petrel numbers on Marion Island have not substantially recovered following the eradication of cats there in 1991. It is possible that recovery rates are being negatively affected by the predation of chicks and eggs by introduced house mice (Mus musculus) (Dilley et al., 2017). Additionally, surveys by Pacoureau et al., (2019) found evidence of a long-term decline in burrow occupancy of Blue Petrels at Mayes Island, Kerguelen, with a 70% reduction in burrow occupancy between 1992 and 2013. The Prince Edward Islands, which encompasses Marion Island, and the Kerguelen archipelago are thought to support a substantial proportion of the global population (Dilley et al., 2017), and therefore the overall population trend is suspected to be declining.

Recommended citation
BirdLife International (2022) Species factsheet: Halobaena caerulea. Downloaded from http://www.birdlife.org on 10/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 10/08/2022.