Data Zone
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#.
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.
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2018 | Near Threatened | D2 |
| 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 |
| Migratory status | full migrant | Forest dependency | Does not normally occur in forest |
| Land mass type |
Land-mass type - shelf island |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 34,500,000 | medium |
| Number of locations | 3 | - |
| Severely Fragmented | - |
| Value | 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 | - | - | - |
| Percentage in largest subpopulation | 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 | 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 |
| Country/Territory | IBA Name |
|---|---|
| Australia | Mewstone |
| Australia | Pedra Branca |
| Australia | Albatross Island and Black Pyramid Rock |
| Australia | Maatsuyker Island Group, Port Davey Islands / Pedra Branca - Marine |
| Australia | Tasman Island / Hippolyte Rocks - Marine |
| Australia | Hunter Island Group, King Island, Robbins Passage & Boullanger Bay / Albatross Island & Black Pyramid Rock - Marine |
| Australia | Indian Ocean, Eastern 9 - Marine |
| Australia | Indian Ocean, Eastern 13 - Marine |
| Australia | Indian Ocean, Eastern 16 - Marine |
| 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 | non-breeding |
| Marine Neritic | Macroalgal/Kelp | suitable | breeding |
| Marine Neritic | Pelagic | major | non-breeding |
| Marine Neritic | Pelagic | major | breeding |
| Marine Neritic | Seagrass (Submerged) | suitable | non-breeding |
| Marine Neritic | Seagrass (Submerged) | suitable | 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 | breeding |
| Marine Oceanic | Epipelagic (0-200m) | major | non-breeding |
| Marine Oceanic | Mesopelagic (200-1000m) | major | breeding |
| Marine Oceanic | Mesopelagic (200-1000m) | major | non-breeding |
| Altitude | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Fishing & harvesting aquatic resources - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Climate change & severe weather | Storms & flooding | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Causing/Could cause fluctuations | Low Impact: 5 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Morus serrator | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Viral/prion-induced diseases - Avipoxvirus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Causing/Could cause fluctuations | Low Impact: 5 | ||||||
|
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| Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
|---|---|---|---|---|---|---|
| Handicrafts, jewellery, etc. | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2021) Species factsheet: Thalassarche cauta. Downloaded from
http://www.birdlife.org on 03/12/2021.
Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 03/12/2021.
