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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | 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) | 594,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 1,900,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | poor | estimated | 2009 |
| Population trend | stable | - | suspected | - |
| Generation length | 8.56 years | - | - | - |
Population justification: The population is suspected to be stable, however, there is some evidence of a population decline in the vicinity of the Argentine Islands since 1988 (E. Woehler in litt. 2003).
Trend justification: The population is suspected to be stable, however, there is some evidence of a population decline in the vicinity of the Argentine Islands since 1988 (E. Woehler in litt. 2003).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Antarctica | extant | native | yes | |||
| Argentina | extant | native | ||||
| Brazil | extant | vagrant | ||||
| Chile | extant | native | ||||
| Falkland Islands (Malvinas) | extant | native | ||||
| South Georgia & the South Sandwich Islands | extant | native | yes | |||
| St Helena (to UK) | extant | vagrant | ||||
| Uruguay | extant | vagrant | yes |
| Country/Territory | IBA Name |
|---|---|
| Antarctica | Harmony Point, Nelson Island |
| South Georgia & the South Sandwich Islands | South Georgia - mainland, islands, islets and stacks |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Marine Intertidal | Rocky Shoreline | major | non-breeding |
| Marine Intertidal | Rocky Shoreline | major | breeding |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | major | non-breeding |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | major | breeding |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | major | non-breeding |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | major | breeding |
| Marine Intertidal | Tidepools | major | non-breeding |
| Marine Intertidal | Tidepools | major | breeding |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Snowy Sheathbill Chionis albus. Downloaded from
https://datazone.birdlife.org/species/factsheet/snowy-sheathbill-chionis-albus on 23/12/2024.
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 23/12/2024.