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Buff-breasted Sandpiper Calidris subruficollis
BirdLife is updating this factsheet for the 2016 Red List
Please email us with any relevant information

IUCN Red List Criteria

Near Threatened (criteria nearly met) C2a(i) 

IUCN Red List history

Year Category
2012 Near Threatened
2008 Near Threatened
2006 Near Threatened
2004 Near Threatened
2000 Lower Risk/Near Threatened
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 continent
shelf island
Average mass -


  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 599,000 medium
Extent of Occurrence non-breeding (km2) 1,500,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 11000-56000 medium Estimated 2006
Population trend Decreasing poor -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 5.7 - - -
Population justification: The global population is estimated to number c.16,000-84,000 individuals (Morrison et al. 2006).
Trend justification: A moderate and on-going decline is suspected based on surveys at staging posts. This is thought to be driven by habitat loss and conversion, but contaminants may also have an impact.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Antigua and Barbuda Native Extant     Yes  
Argentina Native Extant   Yes    
Aruba (to Netherlands) Vagrant Extant        
Australia Vagrant Extant        
Austria Vagrant Extant        
Bahamas Vagrant Extant        
Barbados Native Extant     Yes  
Belgium Vagrant Extant        
Belize Native Extant     Yes  
Bermuda (to UK) Native Extant     Yes  
Bolivia Native Extant   Yes    
Bonaire, Sint Eustatius and Saba (to Netherlands) Native Extant     Yes  
Brazil Native Extant   Yes    
Bulgaria Vagrant Extant        
Canada Native Extant Yes   Yes  
Colombia Native Extant     Yes  
Costa Rica Native Extant     Yes  
Cuba Vagrant Extant        
Curaçao (to Netherlands) Native Extant     Yes  
Denmark Vagrant Extant        
Ecuador Native Extant   Yes Yes  
Egypt Vagrant Extant        
El Salvador Native Extant     Yes  
Faroe Islands (to Denmark) Vagrant Extant        
Finland Vagrant Extant        
France Vagrant Extant        
French Polynesia Vagrant Extant        
Gabon Vagrant Extant        
Gambia Vagrant Extant        
Germany Vagrant Extant        
Ghana Vagrant Extant        
Grenada Native Extant     Yes  
Guadeloupe (to France) Native Extant     Yes  
Guatemala Native Extant     Yes  
Guyana Native Extant     Yes  
Haiti Native Extant     Yes  
Honduras Native Extant     Yes  
Hungary Vagrant Extant        
Iceland Vagrant Extant        
India Vagrant Extant        
Ireland Vagrant Extant        
Italy Vagrant Extant        
Jamaica Vagrant Extant        
Japan Vagrant Extant        
Kenya Vagrant Extant        
Malta Vagrant Extant        
Marshall Islands Vagrant Extant        
Martinique (to France) Native Extant     Yes  
Mexico Native Extant        
Micronesia, Federated States of Vagrant Extant        
Morocco Vagrant Extant        
Namibia Vagrant Extant        
Netherlands Vagrant Extant        
Nicaragua Native Extant     Yes  
Norway Vagrant Extant        
Oman Vagrant Extant     Yes  
Panama Native Extant        
Papua New Guinea Vagrant Extant        
Paraguay Native Extant   Yes    
Peru Native Extant        
Poland Vagrant Extant        
Portugal Vagrant Extant        
Puerto Rico (to USA) Native Extant     Yes  
Russia (Asian) Native Extant Yes      
Saudi Arabia Vagrant Extant     Yes  
Seychelles Vagrant Extant        
Sierra Leone Vagrant Extant        
Sint Maarten (to Netherlands) Native Extant     Yes  
South Africa Vagrant Extant        
South Korea Vagrant Extant        
Spain Vagrant Extant        
Sri Lanka Vagrant Extant        
St Lucia Native Extant     Yes  
St Pierre and Miquelon (to France) Native Extant     Yes  
St Vincent and the Grenadines Native Extant     Yes  
Suriname Native Extant     Yes  
Svalbard and Jan Mayen Islands (to Norway) Vagrant Extant        
Sweden Vagrant Extant        
Switzerland Vagrant Extant        
Taiwan (China) Vagrant Extant        
Trinidad and Tobago Native Extant     Yes  
Tunisia Vagrant Extant        
Ukraine Vagrant Extant        
United Kingdom Vagrant Extant        
United States Minor Outlying Islands (to USA) Vagrant Extant        
Uruguay Native Extant   Yes    
USA Native Extant Yes      
Venezuela Native Extant   Yes    
Virgin Islands (to USA) Vagrant Extant        

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Argentina Bahía de Samborombón y Punta Rasa site factsheet
Argentina Bañados del Río Saladillo site factsheet
Argentina Barrancas de Baradero site factsheet
Argentina Estancia Medaland site factsheet
Argentina Laguna Melincué site factsheet
Argentina Lagunas Encadenadas del Oeste de la Provincia de Buenos Aires site factsheet
Argentina Monumento Natural Laguna de Los Pozuelos site factsheet
Argentina Parque Costero del Sur site factsheet
Argentina Parque Nacional Chaco site factsheet
Argentina San Javier site factsheet
Bolivia Palmar de las Islas site factsheet
Bolivia Reserva Nacional Amazónica Manuripi Heath site factsheet
Brazil Banhado do Maçarico e Cordões Litorâneos Adjacentes site factsheet
Brazil Banhado do Taim site factsheet
Brazil Estuário da Laguna dos Patos site factsheet
Brazil Parque Nacional da Lagoa do Peixe site factsheet
Brazil Várzea do Canal São Gonçalo site factsheet
Canada Beaverhill Lake site factsheet
Colombia Chaviripa-El Rubí site factsheet
Colombia Ciénaga Grande, Isla de Salamanca and Sabana Grande RAMSAR biosphere reserve site factsheet
Colombia Parque Nacional Natural Sanquianga site factsheet
Colombia Parque Wisirare site factsheet
Colombia Reservas de la vereda Altagracia site factsheet
Ecuador Lago de Colta site factsheet
Honduras Islas de la Bahía y Cayos Cochinos site factsheet
Paraguay Bahía de Asunción site factsheet
Paraguay Lagunas Saladas - Riacho Yacaré site factsheet
Paraguay Parque Nacional Tinfunqué - Estero Patiño site factsheet
Peru Manu site factsheet
Peru Reserva Nacional de Paracas site factsheet
Uruguay Castillos Lagoon site factsheet
Uruguay El Tapado Grasslands site factsheet
Uruguay Garzón Lagoon site factsheet
Uruguay Rocha Lagoon site factsheet
USA Cheyenne Bottoms Preserve and Wildlife Area site factsheet
USA Coastal Prairie site factsheet
USA Flint Hills Region site factsheet
USA Katy Prairie Conservancy site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Aquatic & Marine Seasonally Flooded Agricultural Land marginal passage
Artificial/Terrestrial Arable Land major passage
Grassland Subtropical/Tropical Dry major non-breeding
Grassland Tundra major breeding
Altitude 0 - 1000 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Past, Unlikely to Return Whole (>90%) Very Rapid Declines Past Impact
Species mortality
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Indirect ecosystem effects, Ecosystem degradation
Pollution Agricultural & forestry effluents / Herbicides and pesticides Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Ecosystem degradation, Species mortality


Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent
Sport Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2016) Species factsheet: Calidris subruficollis. Downloaded from on 25/10/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from on 25/10/2016.

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 Near Threatened
Family Scolopacidae (Sandpipers, Snipes, Phalaropes)
Species name author (Vieillot, 1819)
Population size 11000-56000 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 599,000 km2
Country endemic? No
Links to further information
- Summary information on this species