Data Zone
Taxonomic note
Corvus orru and C. insularis (del Hoyo and Collar 2016) were previously lumped as C. orru following Christidis & Boles (2008) and Sibley & Monroe (1990, 1993).
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Not Recognised | |
| 2008 | Not Recognised | |
| 2004 | Not Recognised | |
| 2000 | Not Recognised | |
| 1994 | Not Recognised | |
| 1988 | Not Recognised |
| Migratory status | not a migrant | Forest dependency | low |
| Land-mass type | Average mass | 486 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 12,400,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | increasing | - | estimated | - |
| Generation length | 5.53 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as abundant (Madge and Burn 1993). The population is estimated to be increasing following increases owing to the expansion of cultivation (Madge and Burn 1993).
Trend justification: The population is estimated to be increasing following increases owing to the expansion of cultivation (Madge and Burn 1993).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Australia | extant | native | yes | |||
| Indonesia | extant | native | yes | |||
| Papua New Guinea | extant | native | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | resident |
| Artificial/Terrestrial | Urban Areas | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | resident |
| Marine Intertidal | Rocky Shoreline | suitable | resident |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | suitable | resident |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | suitable | resident |
| Savanna | Dry | suitable | resident |
| Shrubland | Subtropical/Tropical Dry | suitable | resident |
| Altitude | 0 - 1500 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Torresian Crow Corvus orru. Downloaded from
https://datazone.birdlife.org/species/factsheet/torresian-crow-corvus-orru on 19/12/2024.
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 19/12/2024.