NT
Yellow-billed Loon Gavia adamsii



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.
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.

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

Red List history
Year Category Criteria
2018 Near Threatened A2d+3d+4d; C1
2016 Near Threatened A2d+3d+4d
2012 Near Threatened A2d+3d+4d
2010 Near Threatened A2d, A3d, A4d
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency does not normally occur in forest
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 12,000,000 km2 medium
Extent of Occurrence (non-breeding) 40,000,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 11000-21000 mature individuals medium estimated 2009
Population trend decreasing poor suspected 1981-2010
Rate of change over the past 10 years/3 generations (longer of the two periods) 1-19% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 1-19% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 1-19% - - -
Generation length 9.79 years - - -

Population justification: The global population has been estimated at 16,000-32,000 individuals.

Trend justification: Population trends have not been quantified. However, the total of c.1,000 individuals harvested in the Bering Sea region in 2007 indicates that subsistence harvest may be causing a population decline (M. Kirchhoff in litt. 2010). Furthermore, there is evidence to suggest that the breeding range of the species has declined in the west and east of Russia (K. Laing in litt. 2008). As such, a decline of 1-19% over the past 29 years (three generations) is precautionarily suspected, although surveys are required to confirm that such declines are currently occurring.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Austria extant vagrant
Belarus extant vagrant
Belgium extant native yes
Bulgaria extant vagrant
Canada extant native yes yes
China (mainland) extant native yes
Croatia extant vagrant
Czechia extant vagrant
Denmark extant native yes
Estonia extant vagrant
Faroe Islands (to Denmark) extant vagrant
Finland extant native yes
France extant vagrant yes
Germany extant vagrant yes
Greenland (to Denmark) extant vagrant
Ireland extant vagrant
Italy extant vagrant
Japan extant native yes
Mexico extant native
Myanmar extant vagrant
Netherlands extant vagrant
North Korea extant native
Norway extant native yes yes
Poland extant vagrant
Russia extant native yes yes
Russia (Asian) extant native yes
Russia (Central Asian) extant native yes
Russia (European) extant native yes
Slovakia extant vagrant yes
Slovenia extant vagrant
South Korea extant native yes
Spain extant vagrant
Svalbard and Jan Mayen Islands (to Norway) extant vagrant
Sweden extant native yes
Switzerland extant vagrant
Ukraine extant vagrant
United Kingdom extant vagrant yes
USA extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Norway Froan
Norway Lofoten
Norway Slettnes
Norway Varangerfjord (including Hornøya and Reinøya)
Russia (Asian) Brekhovskiye islands
Russia (Asian) Cape Billings
Russia (Asian) Chaun delta
Russia (Asian) Gusikha river basin and lower Balakhnya river
Russia (Asian) Kolyma delta
Russia (Asian) Lopatka Peninsula and First Kuril Strait
Russia (Asian) Moroshechnaya River
Russia (Asian) Pyasina delta
Russia (Asian) Vankarem lowlands and Kolyuchin bay
Russia (Asian) West Chaun plain
USA Teshekpuk Lake-E. Dease Inlet

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Neritic Estuaries suitable breeding
Marine Neritic Macroalgal/Kelp major non-breeding
Marine Neritic Pelagic suitable non-breeding
Marine Neritic Seagrass (Submerged) major non-breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel major non-breeding
Marine Neritic Subtidal Rock and Rocky Reefs major non-breeding
Marine Neritic Subtidal Sandy major non-breeding
Marine Neritic Subtidal Sandy-Mud major non-breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Wetlands (inland) Tundra Wetlands (incl. pools and temporary waters from snowmelt) suitable breeding
Altitude 0 - 500 m Occasional altitudinal limits  

Threats & impact
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 Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Indirect ecosystem effects, Species mortality
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Species mortality
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects
Pollution Domestic & urban waste water - Type Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Reduced reproductive success, Species mortality
Pollution Industrial & military effluents - Oil spills Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Stresses
Ecosystem degradation, Species mortality

Recommended citation
BirdLife International (2024) Species factsheet: Yellow-billed Loon Gavia adamsii. Downloaded from https://datazone.birdlife.org/species/factsheet/yellow-billed-loon-gavia-adamsii on 15/12/2024.
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 15/12/2024.