Data Zone
Taxonomic note
Tringa brevipes (del Hoyo and Collar 2014) was previously placed in the genus Heteroscelus.
Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: http://www.aerc.eu/DOCS/Bird_taxa_of_the_WP15.xls.
Christidis, L. and 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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | Least Concern | |
| 2016 | Near Threatened | A2ac+3c+4ac |
| 2014 | Near Threatened | A2ac+3c+4ac |
| 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 |
| Migratory status | full migrant | Forest dependency | medium |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 10,400,000 km2 | |
| Extent of Occurrence (non-breeding) | 43,000,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 42000-49000 mature individuals | medium | estimated | 2016 |
| Population trend | stable | - | suspected | 2011-2025 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 0-32,0% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 0-32,0% | - | - | - |
| Generation length | 4.73 years | - | - | - |
| Number of subpopulations | 1 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: Entire population confined to the East Asian-Australasian Flyway, where Hansen et al. (2022) estimated a total non-breeding population of 70,000 birds in 2016 (based off count data which yielded at least 61,612 birds). Given this estimate was made using data from the non-breeding season, not all birds counted are estimated to be mature individuals. The percentage of mature individuals in any given year is estimated to be 60-70%, thus giving a total population of 42,000-49,000 mature individuals.
Trend justification: Suspected to be stable, although the trend of this species is ultimately highly uncertain, but with reasonable confidence (following Clemens et al. (2021) that previously suggested moderately rapid declines (e.g. Amano et al. 2010, Garnett et al. 2011, MacKinnon et al. 2012, Wetlands International 2014) have not been sustained. Most recent trend data are highly conflicting, with the following estimates of change over three generations: +32% (Clemens et al. 2016), +17% (Studds et al. 2017), –21% (Clemens et al. 2019; Waterbird meta-analysis) and –32% (Clemens et al. 2019; GAMS to three generations). Clemens et al. (2021) concluded an overall trend of -1% over the past three generations, citing as additional evidence that detailed monitoring in north-west Australia (Rogers et al. 2020) found little evidence for rapid declines.
Overall, the rate of population reduction is therefore set here to 0-32% to capture the considerable uncertainty in available data, but with a best estimate of only 0% (i.e. a stable population) following Clemens et al. (2021).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Australia | extant | native | yes | yes | ||
| Bangladesh | extant | native | yes | |||
| Bhutan | extant | native | yes | |||
| British Indian Ocean Territory | extant | vagrant | ||||
| Brunei | extant | native | yes | yes | ||
| Cambodia | extant | native | yes | |||
| China (mainland) | extant | native | yes | |||
| Christmas Island (to Australia) | extant | native | yes | yes | ||
| Cocos (Keeling) Islands (to Australia) | extant | native | yes | |||
| Cook Islands | extant | vagrant | ||||
| Fiji | extant | native | yes | yes | ||
| French Southern Territories | extant | vagrant | ||||
| Guam (to USA) | extant | native | yes | |||
| India | extant | native | yes | |||
| Indonesia | extant | native | yes | yes | ||
| Japan | extant | native | yes | |||
| Kazakhstan | extant | native | yes | |||
| Kiribati | extant | native | yes | |||
| Laos | extant | native | yes | |||
| Macao (China) | extant | native | yes | |||
| Malaysia | extant | native | yes | yes | ||
| Marshall Islands | extant | native | yes | |||
| Mauritius | extant | vagrant | ||||
| Micronesia, Federated States of | extant | native | yes | yes | ||
| Mongolia | extant | native | yes | |||
| Myanmar | extant | native | yes | |||
| Nauru | extant | native | yes | yes | ||
| New Caledonia (to France) | extant | native | yes | yes | ||
| New Zealand | extant | native | yes | |||
| Norfolk Island (to Australia) | extant | native | yes | |||
| North Korea | extant | native | yes | |||
| Northern Mariana Islands (to USA) | extant | native | yes | |||
| Palau | extant | native | yes | yes | ||
| Papua New Guinea | extant | native | yes | yes | ||
| Philippines | extant | native | yes | yes | ||
| Russia | extant | native | yes | yes | ||
| Russia (Asian) | extant | native | yes | yes | ||
| Russia (Central Asian) | extant | native | yes | yes | ||
| Seychelles | extant | vagrant | ||||
| Singapore | extant | native | yes | yes | ||
| Solomon Islands | extant | native | yes | yes | ||
| South Korea | extant | native | yes | |||
| Taiwan, China | extant | native | yes | yes | ||
| Thailand | extant | native | yes | yes | ||
| Timor-Leste | extant | native | yes | yes | ||
| Tonga | extant | native | yes | |||
| Tuvalu | extant | native | yes | |||
| United Kingdom | extant | vagrant | ||||
| United States Minor Outlying Islands (to USA) | extant | native | yes | |||
| USA | extant | native | yes | |||
| Vanuatu | extant | native | yes | yes | ||
| Vietnam | extant | native | yes | |||
| Wallis and Futuna Islands (to France) | extant | native | yes |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Boreal | major | breeding |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | non-breeding |
| Marine Intertidal | Rocky Shoreline | suitable | non-breeding |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | suitable | non-breeding |
| Marine Intertidal | Tidepools | suitable | non-breeding |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | breeding |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | breeding |
| Altitude | 0 - 1800 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | No decline | Medium Impact: 6 | ||||||
|
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| Human intrusions & disturbance | Work & other activities | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Pollution | Domestic & urban waste water - Type Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Pollution | Industrial & military effluents - Type Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Residential & commercial development | Commercial & industrial areas | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Residential & commercial development | Housing & urban areas | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | No decline | Low Impact: 4 | ||||||
|
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| Purpose | Scale |
|---|---|
| Food - human | subsistence |
Recommended citation
BirdLife International (2024) Species factsheet: Grey-tailed Tattler Tringa brevipes. Downloaded from
https://datazone.birdlife.org/species/factsheet/grey-tailed-tattler-tringa-brevipes on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/11/2024.