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Luzon Highland Scops-owl Otus longicornis

Justification
This forest-dependent species is listed as Near Threatened because its population is suspected to be undergoing a moderately rapid decline owing to the extensive loss of lowland forests within its range. It is not considered more threatened because it can use secondary habitats and occurs at higher elevations.

Taxonomic source(s)
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.

Distribution and population
Otus longicornis is endemic to Luzon, Philippines, where it is recorded from the provinces of Ilocos Norte, Benguet, Cagayan, Isabela, Nueva Ecija, Bulacan, Quezon, Camarines Norte and Camarines Sur (Collar et al. 1999). Despite its fairly wide distribution and elevation tolerance, the species is generally uncommon and appears to be sensitive to habitat alteration in the lowlands.

Population justification
The global population size has not been quantified, but the species is described as not uncommon locally (Konig et al. 1999).

Trend justification
This species is suspected to be declining at a moderately rapid rate, in line with rates of forest loss in the lowlands of Luzon. More rapid declines are unlikely because it occurs at higher elevations where forest loss has been less severe.

Ecology
It has been recorded from humid forest in foothills and mountains, and pine forest, from 360 to 1,800 m. Recent records are from lower montane forest at 700-1,500 m. It is believed to feed mainly on insects and a nest with chicks was observed in May.

Threats
The species is thought to be susceptible to habitat loss and degradation driven by logging, mining and agricultural expansion.

Conservation Actions Underway
CITES Appendix II. Conservation Actions Proposed
Carry out surveys to assess the species's population size. Monitor rates of habitat loss and degradation within the species's range. Protect areas of forest within its altitudinal range.

References
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.

König, C.; Weick, F.; Becking, J.-H. 1999. Owls: a guide to the owls of the world. Pica Press, Robertsbridge, U.K.

König, C.; Weick, F.; Becking, J.-H. 1999. Owls: a guide to the owls of the world. Pica Press, Robertsbridge, U.K.

Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).

Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Benstead, P., Bird, J., Taylor, J.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Otus longicornis. Downloaded from http://www.birdlife.org on 29/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/07/2014.

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.

Key facts
Current IUCN Red List category Near Threatened
Family Strigidae (Typical Owls)
Species name author (Ogilvie-Grant, 1894)
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 19,800 km2
Country endemic? Yes
Links to further information
- Additional Information on this species