Assessment of the status of this species is hampered by its considerable obscurity. Given its apparent rarity and the continuing loss and degradation of forest habitat on Sulawesi, it seems reasonable to surmise that its population is small and declining, qualifying it 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.
Rasmussen, P. C. 1999. A new species of Hawk-owl (Ninox) from North Sulawesi, Indonesia. Wilson Bulletin 111: 457-464.
c.22 cm. Small, brightly coloured hawk-owl. Uniform rufous-chestnut but for whitish scapular spots, whitish feather shafts on underparts, indistinct darker scalloping to lower underparts, and narrow, darker bars on retrices. Lacks any facial patterning. Similar spp. Speckled Hawk-owl N. punctulata, Brown Hawk-owl N. scutulata and Ochre-bellied Hawk-owl N. ochracea are larger with more prominently patterned faces. N. punctulata is spotted white on upperparts and barred white on underparts, N. ochracea and N. scutulata are dark brown, the former with paler yellow-ochre lower underparts, the latter with brown-streaked white underparts.
Benstead, P.; Benstead, C.; Hayman, P. submitted. Some interesting bird records from the Sulawesi sub-region. Kukila.
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Hutchinson, R.; Eaton, J.; Benstead, P. 2006. Observations of Cinnabar Hawk Owl Ninox ios in Gunung Ambang Nature Reserve, North Sulawesi, Indonesia, with a description of a secondary vocalisation. Forktail 22: 120-121.
Mauro, I. 2001. Cinnabar Hawk Owl Ninox ios at Lore Lindu National Park, Central Sulawesi, Indonesia, in December 1998. Forktail 17: 118-119.
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
Allinson, T, Benstead, P., Bird, J., Taylor, J., Tobias, J.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2015) Species factsheet: Ninox ios. Downloaded from http://www.birdlife.org on 04/08/2015. Recommended citation for factsheets for more than one species: BirdLife International (2015) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 04/08/2015.
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
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Additional resources for this species
|Current IUCN Red List category||Vulnerable|
|Family||Strigidae (Typical Owls)|
|Species name author||Rasmussen, 1999|
|Population size||2500-9999 mature individuals|
|Distribution size (breeding/resident)||3,700 km2|
|Links to further information|
|- Additional Information on this species|