Data Zone
Taxonomic source(s)
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | Least Concern | |
| 2018 | Least Concern | |
| 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 |
| Migratory status | full migrant | Forest dependency | does not normally occur in forest |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 4,120,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 16,400,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 140000 mature individuals | good | estimated | 2023 |
| Population trend | decreasing | - | suspected | - |
| Generation length | 5.08 years | - | - | - |
Population justification: It also has a relatively large estimated population size (140,000-145,000 mature individuals; Partners in Flight 2023, Wetlands international 2023).
Trend justification: Considering its population trend over three generations (c. 15 years), data from the Christmas Bird Count (Meehan et al. 2022) indicate that it has been broadly stable following a long-term decline, albeit with interannual fluctuations. Over the same period, Partners in Flight (2023) reports a decline of c. 10%, albeit with large confidence intervals. Although the population has declined and may still be declining, it does not currently appear to be declining at a rate approaching Criterion A thresholds.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Canada | extant | native | yes | |||
| China (mainland) | extant | vagrant | yes | |||
| Japan | extant | native | yes | |||
| Russia | extant | native | yes | yes | ||
| Russia (Asian) | extant | native | yes | |||
| USA | extant | native | yes | yes | yes |
| Country/Territory | IBA Name |
|---|---|
| Russia (Asian) | Lopatka Peninsula and First Kuril Strait |
| USA | Kasilof River Flats |
| USA | St Matthew and Hall Islands |
| USA | Susitna Flats |
| USA | Trading Bay |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Grassland | Tundra | major | breeding |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | non-breeding |
| Marine Intertidal | Rocky Shoreline | major | non-breeding |
| Marine Intertidal | Tidepools | major | non-breeding |
| Wetlands (inland) | Tundra Wetlands (incl. pools and temporary waters from snowmelt) | suitable | breeding |
| Altitude | 0 - 300 m | Occasional altitudinal limits |
| 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 | ||||||
|
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| Pollution | Industrial & military effluents - Oil spills | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Unknown | Unknown | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Rock Sandpiper Calidris ptilocnemis. Downloaded from
https://datazone.birdlife.org/species/factsheet/rock-sandpiper-calidris-ptilocnemis on 24/12/2024.
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 24/12/2024.