Data Zone
Taxonomic note
Anser rossii (del Hoyo and Collar 2014) was previously placed in the genus Chen.
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.
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 |
|---|---|---|
| 2021 | 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) | 3,960,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 2,850,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 2100000 mature individuals | poor | estimated | 2020 |
| Population trend | increasing | - | estimated | - |
| Generation length | 6.9 years | - | - | - |
Population justification: The global population is estimated to number 2,100,000 mature individuals (Partners in Flight 2020).
Trend justification: The species is undergoing a large increase, at an average rate of 12% per year (Partners in Flight 2020; see also Wetlands International 2020).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Bahamas | extant | vagrant | ||||
| Canada | extant | native | yes | yes | ||
| Mexico | extant | native | yes | |||
| Netherlands | extant | vagrant | ||||
| Russia | extant | vagrant | ||||
| Russia (Asian) | extant | vagrant | ||||
| USA | extant | native | yes | yes | yes |
| Country/Territory | IBA Name |
|---|---|
| Canada | Barber Lake |
| Canada | McConnell River |
| Canada | Queen Maud Gulf |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Aquatic & Marine | Artificial/Aquatic - Water Storage Areas (over 8ha) | suitable | non-breeding |
| Artificial/Terrestrial | Arable Land | major | non-breeding |
| Artificial/Terrestrial | Pastureland | major | non-breeding |
| Grassland | Tundra | major | breeding |
| Rocky areas (eg. inland cliffs, mountain peaks) | suitable | breeding | |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | non-breeding |
| Altitude | 0 - 2500 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 | ||||||
|
|||||||||
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | international |
| Sport hunting/specimen collecting | subsistence, national |
Recommended citation
BirdLife International (2024) Species factsheet: Ross's Goose Anser rossii. Downloaded from
https://datazone.birdlife.org/species/factsheet/rosss-goose-anser-rossii 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.