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.
Cramp, S. and Simmons, K.E.L. (eds). 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2020 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Least Concern | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | not a migrant | Forest dependency | does not normally occur in forest |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 6,000,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 8,470,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 5500000 mature individuals | poor | estimated | 2009 |
| Population trend | decreasing | - | suspected | - |
| Generation length | 8.4 years | - | - | - |
Population justification: The global population is estimated to number more than 8.2 million individuals, which equates to more than 5.5 million mature individuals (del Hoyo et al. 1996).
Trend justification: The population is suspected to be in decline owing to predation by invasive species, disturbance and pollution (del Hoyo et al. 1996).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Canada | extant | vagrant | yes | |||
| Japan | extant | native | yes | |||
| Mexico | extant | vagrant | yes | |||
| Russia | extant | native | yes | yes | yes | |
| Russia (Asian) | extant | native | yes | yes | yes | |
| USA | extant | native | yes | yes | yes |
| Country/Territory | IBA Name |
|---|---|
| Russia (Asian) | Getlyangen lagoon and Khalyustkin cape |
| Russia (Asian) | Iony Island |
| Russia (Asian) | Kuril islands (between Urup and Paramushir) |
| Russia (Asian) | Ratmanova Island |
| Russia (Asian) | Sireniki shore of Chukotka |
| Russia (Asian) | Talan Island |
| Russia (Asian) | Tyuleniy Island |
| Russia (Asian) | Verkhoturova Island |
| Russia (Asian) | Yamskiye Islands |
| USA | Bering Sea Shelf Edge 178W61N |
| USA | Buldir & Near Islands Marine |
| USA | Buldir Island Colony |
| USA | Diomede Islands Colonies |
| USA | Fenimore Pass & Atka Island Marine |
| USA | Gareloi Island Colony |
| USA | Gareloi Island Marine |
| USA | Kiska Island Colonies |
| USA | Kiska Island Marine |
| USA | Northwest Cape Colony |
| USA | Savoonga Colonies |
| USA | Southwest Cape Colonies |
| USA | St Matthew & Hall Islands Colonies |
| USA | Unimak & Akutan Passes |
| USA | Western St Lawrence Island Marine |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Marine Coastal/Supratidal | Sea Cliffs and Rocky Offshore Islands | major | breeding |
| Marine Intertidal | Rocky Shoreline | major | breeding |
| Marine Intertidal | Tidepools | major | breeding |
| Marine Neritic | Macroalgal/Kelp | major | resident |
| Marine Neritic | Pelagic | major | resident |
| Marine Neritic | Seagrass (Submerged) | major | resident |
| Marine Neritic | Subtidal Loose Rock/pebble/gravel | major | resident |
| Marine Neritic | Subtidal Rock and Rocky Reefs | major | resident |
| Marine Neritic | Subtidal Sandy | major | resident |
| Marine Neritic | Subtidal Sandy-Mud | major | resident |
| Marine Oceanic | Epipelagic (0-200m) | suitable | resident |
| Marine Oceanic | Mesopelagic (200-1000m) | suitable | resident |
| Rocky areas (eg. inland cliffs, mountain peaks) | major | breeding | |
| Altitude | 0 - 500 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | Unknown | Unknown | ||||||
|
|||||||||
| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Vulpes lagopus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Vulpes vulpes | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Pollution | Industrial & military effluents - Oil spills | Timing | Scope | Severity | Impact | ||||
| Future | Minority (<50%) | Slow, Significant Declines | Low Impact: 3 | ||||||
|
|||||||||
| Purpose | Scale |
|---|---|
| Food - human | subsistence, national |
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Crested Auklet Aethia cristatella. Downloaded from
https://datazone.birdlife.org/species/factsheet/crested-auklet-aethia-cristatella on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/11/2024.