This owl has a small population which is undergoing a rapid decline and severe fragmentation as a result of extensive deforestation. It therefore qualifies as Vulnerable.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
Mimizuku gurneyi (Tweeddale, 1879)
30 cm. Medium-sized owl with well-developed ear-tufts. Dark eyes. Rufescent facial disc outlined in black, conspicuous white eyebrows. Rufescent-brown crown and upperparts with darker shaft streaks, barred flight feathers and pale line on scapulars. Whitish underparts, washed rufous with bold black streaks. Similar spp. Larger than all sympatric Otus species, all of which lack such bold underpart streaking. Voice Loud wuaah repeated every 10-20 seconds in series of 5-10 calls.
Collar, N. J.; Mallari, N. A. D.; Tabaranza, B. R. J. 1999. Threatened birds of the Philippines: the Haribon Foundation/BirdLife International Red Data Book. Bookmark, Makati City.
Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).
Text account compilers
Benstead, P., Bird, J., Davidson, P., Derhé, M., Lowen, J., Peet, N.
BirdLife International (2015) Species factsheet: Otus gurneyi. Downloaded from http://www.birdlife.org on 06/05/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/05/2015.
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
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
Additional resources for this species
|Current IUCN Red List category||Vulnerable|
|Family||Strigidae (Typical Owls)|
|Species name author||(Tweeddale, 1879)|
|Population size||2500-9999 mature individuals|
|Distribution size (breeding/resident)||95,600 km2|
|Links to further information|
|- Additional Information on this species|