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LC
Brown Noddy Anous stolidus

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 189 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 26,800
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals poor Estimated 2009
Population trend Stable -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 12.9 - - -
Population justification: The global population is estimated to number c.180,000-1,100,000 individuals (Wetlands International 2006), while national population sizes have been estimated at c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Taiwan and c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Japan (Brazil 2009).
Trend justification: Although Wetlands International consider the population trend to be unknown, the population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
American Samoa Unknown Extant        
Angola Unknown Extant        
Anguilla (to UK) Native Extant Yes      
Antigua and Barbuda Native Extant       Yes
Aruba (to Netherlands) Native Extant       Yes
Australia Native Extant Yes      
Bahamas Native Extant       Yes
Barbados Native Extant       Yes
Belize Native Extant       Yes
Benin Unknown Extant        
Bermuda (to UK) Vagrant Extant   Yes    
Bonaire, Sint Eustatius and Saba (to Netherlands) Native Extant       Yes
Brazil Native Extant       Yes
British Indian Ocean Territory Native Extant Yes      
Brunei Native Extant       Yes
Cambodia Unknown Extant        
Cameroon Native Extant       Yes
Cayman Islands (to UK) Native Extant       Yes
Chile Native Extant       Yes
China (mainland) Native Extant       Yes
Christmas Island (to Australia) Native Extant Yes      
Cocos (Keeling) Islands (to Australia) Native Extant Yes      
Colombia Native Extant       Yes
Comoros Native Extant       Yes
Congo Unknown Extant        
Cook Islands Native Extant Yes      
Costa Rica Native Extant       Yes
Côte d'Ivoire Unknown Extant        
Cuba Native Extant       Yes
Curaçao (to Netherlands) Native Extant       Yes
Djibouti Native Extant       Yes
Dominica Native Extant       Yes
Dominican Republic Native Extant       Yes
Ecuador Native Extant       Yes
Egypt Native Extant       Yes
El Salvador Native Extant       Yes
Equatorial Guinea Native Extant       Yes
Eritrea Native Extant       Yes
Fiji Native Extant       Yes
French Guiana Native Extant       Yes
French Polynesia Native Extant Yes      
French Southern Territories Unknown Extant        
Gabon Unknown Extant        
Gambia Vagrant Extant   Yes    
Ghana Vagrant Extant   Yes    
Grenada Native Extant       Yes
Guadeloupe (to France) Native Extant       Yes
Guam (to USA) Native Extant Yes      
Guatemala Native Extant       Yes
Guyana Native Extant       Yes
Haiti Native Extant       Yes
Honduras Native Extant       Yes
India Native Extant       Yes
Indonesia Native Extant       Yes
Jamaica Native Extant Yes      
Japan Native Extant       Yes
Kenya Native Extant       Yes
Kiribati Native Extant Yes      
Liberia Vagrant Extant   Yes    
Madagascar Native Extant       Yes
Malaysia Native Extant       Yes
Maldives Native Extant Yes      
Marshall Islands Native Extant Yes      
Martinique (to France) Native Extant       Yes
Mauritius Native Extant Yes      
Mayotte (to France) Native Extant       Yes
Mexico Native Extant       Yes
Micronesia, Federated States of Native Extant Yes      
Montserrat (to UK) Native Extant       Yes
Mozambique Unknown Extant        
Myanmar Native Extant       Yes
Nauru Native Extant       Yes
New Caledonia (to France) Native Extant Yes      
New Zealand Native Extant Yes      
Nicaragua Native Extant       Yes
Nigeria Native Extant       Yes
Niue (to New Zealand) Vagrant Extant   Yes    
Norfolk Island (to Australia) Native Extant Yes      
Northern Mariana Islands (to USA) Native Extant Yes      
Oman Native Extant Yes      
Pakistan Native Extant       Yes
Palau Native Extant Yes      
Panama Native Extant       Yes
Papua New Guinea Unknown Extant        
Peru Unknown Extant        
Philippines Native Extant       Yes
Pitcairn Islands (to UK) Native Extant Yes      
Puerto Rico (to USA) Native Extant       Yes
Réunion (to France) Native Extant       Yes
Samoa Unknown Extant        
São Tomé e Príncipe Native Extant Yes      
Saudi Arabia Native Extant Yes      
Seychelles Native Extant Yes      
Sierra Leone Vagrant Extant   Yes    
Singapore Unknown Extant        
Sint Maarten (to Netherlands) Native Extant       Yes
Solomon Islands Native Extant Yes      
Somalia Native Extant Yes      
South Africa Native Extant       Yes
Sri Lanka Native Extant       Yes
St Helena (to UK) Native Extant       Yes
St Kitts and Nevis Native Extant       Yes
St Lucia Native Extant       Yes
St Martin (to France) Native Extant       Yes
St Vincent and the Grenadines Native Extant       Yes
Sudan Native Extant Yes      
Suriname Native Extant       Yes
Taiwan (China) Native Extant       Yes
Tanzania Native Extant Yes      
Thailand Native Extant       Yes
Timor-Leste Native Extant       Yes
Togo Vagrant Extant   Yes    
Tokelau (to New Zealand) Native Extant Yes      
Tonga Native Extant Yes      
Trinidad and Tobago Native Extant       Yes
Turks and Caicos Islands (to UK) Native Extant Yes      
Tuvalu Native Extant Yes      
United Arab Emirates Native Extant   Yes    
United States Minor Outlying Islands (to USA) Native Extant Yes      
USA Native Extant Yes      
Vanuatu Native Extant Yes      
Venezuela Native Extant       Yes
Vietnam Native Extant       Yes
Virgin Islands (to UK) Native Extant Yes      
Virgin Islands (to USA) Native Extant Yes      
Wallis and Futuna Islands (to France) Native Extant Yes      
Yemen Native Extant Yes   Yes  

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Anguilla (to UK) Dog Island site factsheet
Anguilla (to UK) Sombrero site factsheet
Aruba (to Netherlands) San Nicolas Bay Reef Islands site factsheet
Australia Houtman Abrolhos site factsheet
Australia Raine Island, Moulter and Maclennan Cays site factsheet
Bahamas Conception Island site factsheet
Bahamas Goulding Cay Wild Bird Reserve site factsheet
Bahamas Graham's Harbour site factsheet
Bahamas North Atlantic Abaco Cays site factsheet
Brazil Atol das Rocas site factsheet
British Indian Ocean Territory Danger Island, Chagos Bank site factsheet
British Indian Ocean Territory Nelson, Chagos Bank site factsheet
British Indian Ocean Territory Sea Cow, Chagos Bank site factsheet
British Indian Ocean Territory South Brother, Chagos Bank site factsheet
Chile Isla Rapa Nui site factsheet
Chile Isla Sala y Gómez site factsheet
Chile Islas Desventuradas site factsheet
Cocos (Keeling) Islands (to Australia) North Keeling Island site factsheet
Dominica Point Des Foux site factsheet
Dominican Republic Siete Hermanos Keys site factsheet
French Polynesia Anuanuraro site factsheet
Guadeloupe (to France) Falaises Nord et Îlet de Vieux-Fort de Marie-Galante site factsheet
Indonesia Pulau Gunung Api site factsheet
Indonesia Pulau Manuk site factsheet
Jamaica Morant Cays and Bank site factsheet
Jamaica Pedro Cays and Bank site factsheet
Jamaica Portland Ridge and Bight site factsheet
Kiribati Phoenix Islands Marine site factsheet
Kiribati Rawaki (Phoenix Island) site factsheet
Martinique (to France) Îlets et falaises de Sainte Anne site factsheet
Martinique (to France) Rocher du Diamant site factsheet
Mauritius Cargados Carajos shoals (Saint Brandon) site factsheet
Mauritius Serpent Island site factsheet
Micronesia, Federated States of Pohnpei Marine site factsheet
Northern Mariana Islands (to USA) Maug Islands site factsheet
Northern Mariana Islands (to USA) Uracus Marine site factsheet
Puerto Rico (to USA) Culebra site factsheet
São Tomé e Príncipe Tinhosas islands site factsheet
Saudi Arabia Farasan Islands site factsheet
Seychelles African Banks site factsheet
Seychelles Aride island site factsheet
Seychelles Bird Island site factsheet
Seychelles Marie Louise island site factsheet
Somalia Jasiira Maydh site factsheet
St Martin (to France) Tintamarre site factsheet
Tanzania Latham Island site factsheet
Tokelau (to New Zealand) Atafu site factsheet
Tokelau (to New Zealand) Nukunonu site factsheet
Turks and Caicos Islands (to UK) Caicos Bank Southern Cays site factsheet
Turks and Caicos Islands (to UK) Turks Bank Seabird Cays site factsheet
United States Minor Outlying Islands (to USA) Johnston Atoll site factsheet
United States Minor Outlying Islands (to USA) Johnston Atoll Marine site factsheet
USA Northwestern Hawaiian Islands site factsheet
Venezuela Wildlife Refuge Bird Island - Marine site factsheet
Virgin Islands (to USA) Saba Island and Cays site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands suitable 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
Altitude 0 - 50 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2014) Species factsheet: Anous stolidus. Downloaded from http://www.birdlife.org on 23/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2014.

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 Laridae (Gulls, Terns, Skimmers)
Species name author (Linnaeus, 1758)
Population size mature individuals
Population trend Stable
Distribution size (breeding/resident) 26,800 km2
Country endemic? No
Links to further information
- Summary information on this species
- Projected distributions under climate change