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Anhinga Anhinga anhinga

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 not a migrant Forest dependency Does not normally occur in forest
Land mass type   Average mass 1235 g


  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 14,900,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals Unknown not applicable Not Applicable 0
Population trend Decreasing -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 8.8 - - -
Trend justification: The overall population trend is decreasing, although some populations have unknown trends (Wetlands International 2006), and in North America the trend is increasing (based on BBS/CBC data: Butcher and Niven 2007).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage
Antigua and Barbuda Vagrant Extant   Yes  
Argentina Native Extant      
Bahamas Vagrant Extant   Yes  
Barbados Vagrant Extant   Yes  
Belize Native Extant      
Bolivia Native Extant      
Brazil Native Extant      
Canada Vagrant Extant   Yes  
Cayman Islands (to UK) Vagrant Extant   Yes  
Colombia Native Extant      
Costa Rica Native Extant      
Cuba Native Extant      
Dominica Vagrant Extant   Yes  
Dominican Republic Vagrant Extant   Yes  
Ecuador Native Extant      
El Salvador Native Extant      
French Guiana Native Extant      
Grenada Vagrant Extant   Yes  
Guadeloupe (to France) Vagrant Extant   Yes  
Guatemala Native Extant      
Guyana Native Extant      
Haiti Vagrant Extant   Yes  
Honduras Native Extant      
Jamaica Vagrant Extant   Yes  
Martinique (to France) Vagrant Extant   Yes  
Mexico Native Extant      
Montserrat (to UK) Vagrant Extant   Yes  
Nicaragua Native Extant      
Panama Native Extant      
Paraguay Native Extant      
Peru Native Extant      
St Kitts and Nevis Vagrant Extant   Yes  
St Lucia Vagrant Extant   Yes  
St Vincent and the Grenadines Vagrant Extant   Yes  
Suriname Native Extant      
Trinidad and Tobago Vagrant Extant   Yes  
Turks and Caicos Islands (to UK) Vagrant Extant   Yes  
Uruguay Native Extant Yes    
USA Native Extant Yes    
Venezuela Native Extant      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Guyana Shell Beach site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable resident
Altitude 0 - 900 m Occasional altitudinal limits (max) 3100 m


Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Anhinga anhinga. Downloaded from on 21/04/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from on 21/04/2014.

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 Anhingidae (Anhingas)
Species name author (Linnaeus, 1766)
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 14,900,000 km2
Country endemic? No
Links to further information
- Summary information on this species