email a friend
printable version
LC
Pacific Loon Gavia pacifica

IUCN Red List history

Year Category
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

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,170,000
Extent of Occurrence non-breeding (km2) 1,170,000
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals poor Estimated 2009
Population trend Increasing -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 9.8 - - -
Population justification: The global population is estimated to number c.930,000-1,600,000 individuals (Wetlands International 2006), while national population sizes have been estimated at c.50-10,000 wintering individuals in Japan and c.100-10,000 breeding pairs c.1,000-10,000 wintering individuals in Russia (Brazil 2009).
Trend justification: This species has undergone a large and statistically significant increase over the last 40 years in North America (148% increase over 40 years, equating to a 25.5% increase per decade; data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Bermuda (to UK) Vagrant Extant     Yes  
Canada Native Extant     Yes Yes
China (mainland) Vagrant Extant        
Greenland (to Denmark) Vagrant Extant        
Hong Kong (China) Vagrant Extant        
Japan Native Extant        
Mexico Native Extant        
North Korea Unknown Extant        
Russia (Asian) Native Extant Yes      
South Korea Unknown Extant        
USA Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Canada Active Pass site factsheet
Canada Baynes Sound site factsheet
Canada Lawn Point site factsheet
Canada Rasmussen Lowlands site factsheet
Russia (Asian) Kuril islands (between Urup and Paramushir) site factsheet
Russia (Asian) West Chaun plain site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Neritic Estuaries suitable non-breeding
Marine Neritic Macroalgal/Kelp major non-breeding
Marine Neritic Pelagic major breeding
Marine Neritic Pelagic major 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) major breeding
Altitude 0 - 500 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation

Recommended citation
BirdLife International (2014) Species factsheet: Gavia pacifica. Downloaded from http://www.birdlife.org on 01/11/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 01/11/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Gaviidae (Loons/Divers)
Species name author (Lawrence, 1858)
Population size mature individuals
Population trend Increasing
Distribution size (breeding/resident) 1,170,000 km2
Country endemic? No
Links to further information
- Summary information on this species