This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Christidis, L.; Boles, W. E. 1994. The taxonomy and species of birds of Australia and its territories. Royal Australasian Ornithologists' Union, Melbourne.
Christidis, L.; Boles, W. E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Ninox scutulata (Sibley and Monroe 1990, 1993) was split into N. scutulata, N. randi and N. japonica by King (2002), but this treatment is not adopted by the BirdLife Taxonomic Working Group, because although King (2002) provides good evidence of consistent vocal differences in three groups within the Ninox scutulata complex, he also shows there are no clear matching morphological differences. It is also hard to judge just how great are the vocal differences and to decide whether they represent more than dialect difference between resident and migratory populations of a single species. The BirdLife Taxonomic Working Group therefore feels that more confirmatory work is needed before a decision to go with King's arrangement can be taken.
Further web sources of information
Hear sounds for this species from xeno-canto, the community database of shared bird sounds from around the world.
Text account compilers
Butchart, S., Ekstrom, J.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2013) Species factsheet: Ninox scutulata. Downloaded from http://www.birdlife.org on 18/06/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/06/2013.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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|Current IUCN Red List category||Least Concern|
|Species name author||(Raffles, 1822)|
|Population size||Unknown mature individuals|
|Distribution size (breeding/resident)||6,280,000 km2|
|Links to further information|
|- Additional Information on this species|