- Luzon Scops-Owl
 - Luzon Scops-Owl
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Luzon Scops-Owl Otus longicornis Scientific name definitions

Denver W. Holt, Regan Berkley, Caroline Deppe, Paula L. Enríquez, Julie L. Petersen, José Luis Rangel Salazar, Kelley P. Segars, Kristin L. Wood, and Jeffrey S. Marks
Version: 1.0 — Published March 4, 2020
Text last updated May 15, 2017

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Field Identification

18–19 cm (1); no information on mass (1). Smallish scops-owl with frosted facial trim , white eyebrows , long loral plumes barred white with black tips, long ear-tufts with some rufous colouring, ear-coverts barred white, blackish brown and rufous; pale or white collar, narrower on hindneck than on breast; upperparts bright rufous-buff, streaked and with irregular dark bars on each feather; chin and throat whitish, throat feathers tipped black; breast rufous, mottled with black and white, rest of underparts white with fulvous and rusty-brown mottling; tarsus feathered for roughly half length; irides bright yellow; cere dull yellowish green, flesh at base (1); bill slender, laterally compressed, dull green; lower tarsus and toes whitish flesh. Only other congener on Luzon, O. megalotis, is larger than present species (wing length 185–205 mm vs. 136–153 mm in longicornis (1) ) and has orange-brown irides; usually occurs at lower elevations, though some overlap (2, 3).

Systematics History

Probably closest to O. mirus. Previously treated as race of O. spilocephalus or O. scops, but differs from both in morphology and apparently in vocalizations. Monotypic.

Subspecies

Monotypic.

Distribution

Luzon, in N Philippines.

Habitat

Humid forest, generally in foothills and mountains, also in pine woodland and perhaps in oak-dominated cloud forest. Specimens collected from 360–1800 m; recently observed in lower montane forest at 700–1500 m, and at 2200–2300 m on Mt Data (3).

Movement

Presumably resident (1).

Diet and Foraging

Little information (1). Stomach contents of specimens have included primarily insects.

Sounds and Vocal Behavior

Song of male a melancholy whistle with downward inflection  , given at intervals of c. 3–5 seconds (1).

Breeding

Nest with 3 chicks found in May. Nest in tree hole (e.g. woodpecker cavity  (2) ). Clutch size reported to be 2–3 eggs; chick with light grey down, this replaced by brown-barred grey.

Not globally threatened. Currently considered Near Threatened, and previously, Vulnerable. CITES II. Restricted-range species: present in Luzon EBA. No information on population size; numbers thought to be declining. Evidently rare, and few reliable sightings. Recent records from Quezon National Park, near Manila; from Mt Cetaceo and Mt Dipalayag in Sierra Madre, in NE Luzon; and on Mt Data (3). Rarity attributed to habitat loss, and this seems likely to continue. Research needed on species’ ecology and biology to help determine its conservation requirements.

Distribution of the Luzon Scops-Owl - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Luzon Scops-Owl

Recommended Citation

Holt, D. W., R. Berkley, C. Deppe, P. L. Enríquez, J. L. Petersen, J. L. Rangel Salazar, K. P. Segars, K. L. Wood, and J. S. Marks (2020). Luzon Scops-Owl (Otus longicornis), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.lusowl1.01
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