LC
Wandering Tattler Tringa incana



Taxonomy

Taxonomic note
Tringa incana (del Hoyo and Collar 2014) was previously placed in the genus Heteroscelus as H. incanus.

Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
Christidis, L.; Boles, W. E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
Turbott, E. G. 1990. Checklist of the birds of New Zealand. Ornithological Society of New Zealand, Wellington.
Turbott, E.G. 1990. Checklist of the birds of New Zealand. Ornithological Society of New Zealand, Wellington.

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

Red List history
Year Category Criteria
2016 Least Concern
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) 2,450,000 medium
Extent of Occurrence non-breeding (km2) 103,000,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 6700-17000 poor estimated 2009
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 5.7 - - -

Population justification: The global population is estimated to number c.10,000-25,000 individuals (Wetlands International, 2006), roughly equivalent to 6,700-17,000 mature individuals. The population in Russia has been estimated at < c.100,000 breeding pairs and < c.1,000 individuals on migration (Brazil 2009).

Trend justification: The overall population trend is stable (Wetlands International 2006). This species has undergone a large and statistically significant decrease over the last 40 years in North America (-82.7% decline over 40 years, equating to a -35.5% decline per decade; data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007) Note, however, that these surveys cover less than 50% of the species's range in North America.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
American Samoa N Extant
Australia N Extant
Canada N Extant
Chile N Extant
China (mainland) V Extant
Colombia N Extant
Cook Islands N Extant
Costa Rica N Extant Yes
Ecuador N Extant Yes
El Salvador N Extant
Fiji N Extant Yes Yes
French Polynesia N Extant
Guam (to USA) N Extant Yes
Guatemala N Extant
Honduras N Extant
Indonesia V Extant
Japan V Extant
Kiribati N Extant
Marshall Islands N Extant Yes
Mexico N Extant
Micronesia, Federated States of N Extant Yes
Nauru N Extant
New Caledonia (to France) N Extant
New Zealand N Extant
Niue (to New Zealand) N Extant
Northern Mariana Islands (to USA) N Extant Yes
Palau N Extant Yes
Panama V Extant
Papua New Guinea N Extant
Peru N Extant
Pitcairn Islands (to UK) N Extant
Russia N Extant
Russia (Asian) N Extant
Samoa N Extant
Solomon Islands N Extant
Taiwan, China V Extant
Tokelau (to New Zealand) N Extant
Tonga N Extant
Tuvalu N Extant
United States Minor Outlying Islands (to USA) N Extant Yes
USA N Extant Yes
Vanuatu N Extant
Wallis and Futuna Islands (to France) N Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Ecuador Isla de la Plata
Ecuador Lagunas de Ecuasal-Salinas
Ecuador Isla San Cristóbal
Ecuador Isla Española
Ecuador Isla Floreana
Ecuador Áreas costeras de Fernandina y del occidente de Isabela
Costa Rica Nicoya Gulf mangroves and coastal areas
USA Northwestern Hawaiian Islands

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Intertidal Rocky Shoreline major non-breeding
Marine Intertidal Tidepools major non-breeding
Marine Neritic Coral Reef - Back Slope major non-breeding
Marine Neritic Coral Reef - Foreslope (Outer Reef Slope) major non-breeding
Marine Neritic Coral Reef - Inter-Reef Rubble Substrate major non-breeding
Marine Neritic Coral Reef - Inter-Reef Soft Substrate major non-breeding
Marine Neritic Coral Reef - Lagoon major non-breeding
Marine Neritic Coral Reef - Outer Reef Channel major non-breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) major breeding
Altitude   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 (2021) Species factsheet: Tringa incana. Downloaded from http://www.birdlife.org on 08/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 08/12/2021.