NT
Shy Albatross Thalassarche cauta
BirdLife is reviewing the status of this species for the 2017 Red List.
Please click here to join the discussion



Taxonomy

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
Christidis, L. and Boles, W.E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
Christidis, L.; 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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
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.
Robertson, C. J. R.; Nunn, G. B. 1998. Towards a new taxonomy for albatrosses. In: Robertson, G.; Gales, R. (ed.), Albatross biology and conservation, pp. 13-19. Surrey Beatty & Sons, Chipping Norton, Australia.
Robertson, C. J. R.; Nunn, G. B. 1998. Towards a new taxonomy for albatrosses. In: Robertson, G.; Gales, R. (ed.), Albatross biology and conservation, pp. 13-19. Surrey Beatty & Sons, Chipping Norton, Australia.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Near Threatened D2
2012 Near Threatened D2
2010 Near Threatened D2
2008 Near Threatened D2
2007 Near Threatened
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Land-mass type - shelf island
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 34,500,000 medium
Number of locations 3 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 30700 poor estimated 2009
Population trend Unknown poor -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 1 - - -
Largest subpopulations 100 - - -
Generation length (yrs) 23.1 - - -

Population justification: The global population of Shy Albatross was estimated to be 12,000 to 19,000 pairs in 2009 (Alderman et al. 2011). Data submitted to ACAP estimated a total population of 15,350 pairs, made up of 5,200 pairs on Albatross Island (in 2010) (Alderman et al. 2011), 7,600-12,400 pairs on Mewstone (in 2005) (Alderman et al. 2011), and 130-170 pairs on Pedra Branca (in 2009) (Alderman et al. 2011). The number of mature individuals is therefore estimated at c.30,700. The global population including non-breeders is now estimated to be 60,000-70,000 individuals.

Trend justification: Without knowing the population trend on Mewstone, or the historic population size on Pedra Branca, overall trend over a three generation period (66 years) cannot be accurately assessed.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola U Extant
Argentina U Extant
Australia N Extant Yes
Brazil U Extant
Chile U Extant
Falkland Islands (Malvinas) U Extant
French Southern Territories U Extant
Heard Island and McDonald Islands (to Australia) U Extant
Madagascar U Extant
Mauritius U Extant
Mozambique U Extant
Namibia U Extant
New Zealand N Extant Yes
Norfolk Island (to Australia) U Extant
Peru U Extant
Réunion (to France) U Extant
South Africa N Extant Yes
South Georgia & the South Sandwich Islands U Extant
St Helena (to UK) U Extant
Uruguay U Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subantarctic major breeding
Grassland Temperate major breeding
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands major breeding
Marine Neritic Macroalgal/Kelp suitable breeding
Marine Neritic Macroalgal/Kelp suitable non-breeding
Marine Neritic Pelagic major non-breeding
Marine Neritic Pelagic major breeding
Marine Neritic Seagrass (Submerged) suitable breeding
Marine Neritic Seagrass (Submerged) suitable non-breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable non-breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable non-breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable breeding
Marine Neritic Subtidal Sandy suitable non-breeding
Marine Neritic Subtidal Sandy suitable breeding
Marine Neritic Subtidal Sandy-Mud suitable non-breeding
Marine Neritic Subtidal Sandy-Mud suitable breeding
Marine Oceanic Epipelagic (0-200m) major non-breeding
Marine Oceanic Epipelagic (0-200m) major breeding
Marine Oceanic Mesopelagic (200-1000m) major non-breeding
Marine Oceanic Mesopelagic (200-1000m) major breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Fishing & harvesting aquatic resources Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown
Stresses
Indirect ecosystem effects, Species mortality
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines
Stresses
Competition

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Wearing apparel, accessories Whole Adults and juveniles Wild International Non-trivial Historical

Recommended citation
BirdLife International (2017) Species factsheet: Thalassarche cauta. Downloaded from http://www.birdlife.org on 20/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/10/2017.