|Scientific Name:||Ninox ios|
|Species Authority:||Rasmussen, 1999|
|Taxonomic Source(s):||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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.|
|Identification information:||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.|
|Red List Category & Criteria:||Vulnerable C2a(i) ver 3.1|
|Reviewer(s):||Butchart, S. & Symes, A.|
|Facilitator/Compiler(s):||Allinson, T, Benstead, P., Bird, J., Taylor, J., Tobias, J.|
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.
|Previously published Red List assessments:|
|Range Description:||Ninox ios is apparently restricted to the highlands of Sulawesi, Indonesia (BirdLife International 2001), where there have been at least five documented records since the collection of the type specimen in Bogani Nani Wartabone National Park in 1985, including four records from Gunung Ambang Strict Nature Reserve and one record from Lore Lindu National Park (Central Sulawesi) (Mauro 2001, King 2005, Hutchinson et al. 2006). The record from Lore Lindu National Park greatly extends its known range.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The population size is preliminarily estimated to fall into the band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.|
Trend Justification: Deforestation has occurred at lower elevations within the species's range. This on-going threat suggests that its population is declining, although the rate of decline is suspected to be moderate owing to limited impacts on montane forests.
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||The six known records (including that of the type specimen) are from forest between 1,120 m and 1,700 m, and it is assumed that the species is sympatric with, but probably at higher elevations than, the Ochre-bellied Hawk-owl N. ochracea (Hutchinson et al. 2006). Observations and comparison with owlet-nightjars (Aegothelidae) suggests that the species feeds predominantly on flying insects by conducting short sallies from exposed branches (Hutchinson et al. 2006).|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Generation Length (years):||4.1|
|Movement patterns:||Not a Migrant|
|Major Threat(s):||Forest at middle elevations on Sulawesi is relatively intact at present. However, deforestation is having a major impact in many areas, and until it is demonstrated that the species occurs more widely than its current three localities, it is precautionary to regard it as at risk simply on the basis of its potentially restricted population. The drivers behind on-going deforestation are thought to be rural development and encroachment of settlements, agricultural expansion and logging pressure. Oil palm plantations are a major cause of deforestation in many parts of Indonesia. As a species of montane areas, it is potentially at risk from the effects of projected climate change on the distribution and extent of its habitats.|
Conservation Actions Underway
CITES Appendix II. The species occurs within three protected areas: Bogani Nani Wartabone National Park, Gunung Ambang Strict Nature Reserve and Lore Lindu National Park. Conservation Actions Proposed
Establish the calling periods of this species as a prerequisite to full surveys using playback, by which its true status and needs can be determined. Provide full support for the management and protection of protected areas where it is known to occur. Assess the threats to higher elevation forest on Sulawesi and take appropriate actions to conserve these areas.
|Citation:||BirdLife International. 2016. Ninox ios. The IUCN Red List of Threatened Species 2016: e.T22728610A94991992.Downloaded on 24 February 2017.|
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