Luzon Highland Scops-owl Otus longicornis


Justification of Red List Category
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.

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.

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.


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.


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

Conservation actions

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.


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

Recommended citation
BirdLife International (2020) Species factsheet: Otus longicornis. Downloaded from http://www.birdlife.org on 06/06/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/06/2020.