- Mantanani Scops-Owl
 - Mantanani Scops-Owl
+3
 - Mantanani Scops-Owl
Watch
 - Mantanani Scops-Owl
Listen

Mantanani Scops-Owl Otus mantananensis 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 July 19, 2017

Sign in to see your badges

Field Identification

c. 18 cm (1); c. 100–110 g. Smallish scops-owl with brownish and rufous morphs. Facial disc pale buffish with distinct, thin dark border, and narrow whitish eyebrows ; crown and short ear-tufts spotted dark, hindneck with black triangular spots; upperparts generally dark brown, mottled with black, with complex shaft streaks; outer webs of scapulars whitish; flight-feathers and tail barred pale; underparts much paler (perhaps even whitish) and peppered with black streaks and broken cross-lines, breast with variable rufous tinge; irides yellow; bill greyish-horn; toes pale greyish-brown (1); tarsus almost fully feathered. Juvenile of nominate race not described; sibutuensis whitish, heavily barred dark brown, crown and breast plainer brown, more prominent barring on tertials and tail. Races differ in plumage tone, paler, more grey or more rufous: romblonis with general rufous tinge, nearly unbarred tertials and upper­tail, heavily marked below; sibutuensis usually dull brown with irregular, subdued markings, reduced pale colour on scapulars; cuyensis large, with conspicuous black streaking.

Systematics History

Editor's Note: This article requires further editing work to merge existing content into the appropriate Subspecies sections. Please bear with us while this update takes place.

Probably closest to O. magicus, the two being closely allied to the O. manadensis species-group (which see). Previously treated as conspecific with O. scops or O. sunia, but vocally distinct from both. Island population off N Luzon (calayensis), included with O. elegans, is sometimes placed with present species. Sulu form sibutuensis has been considered a race of O. manadensis. Tumindao population, described as form steerei, regarded as inseparable from sibutuensis. Racial allocation highly tentative, however, as no specimens known for many of islands listed. Four subspecies recognized.

Subspecies


SUBSPECIES

Otus mantananensis romblonis Scientific name definitions

Distribution

Tres Reyes, Banton, Tablas, Romblon, Sibuyan and Semirara, in C Philippines.

SUBSPECIES

Otus mantananensis cuyensis Scientific name definitions

Distribution

S Calamian Is (Dicabaito, Linapacan) and Cuyo I, in W Philippines.

SUBSPECIES

Otus mantananensis mantananensis Scientific name definitions

Distribution

Mantanani I, off N Borneo, and islands off S coast of Palawan.

SUBSPECIES

Otus mantananensis sibutuensis Scientific name definitions

Distribution

Sibutu and Tumindao, in SW Sulu Is.

Distribution

Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Habitat

Forest, woodland, coconut groves (2) and casuarina trees; hunts at edges of wood, in clearings and among secondary growth. Lowlands and foothills.

Movement

Resident throughout range.

Diet and Foraging

Apparently mostly insects.

Sounds and Vocal Behavior

Male generally a deep, nasal, goose-like honk , repeated at intervals of c. 5–6 seconds; this often followed by 3–6 or more lower-pitched gruff notes, possibly from duetting female (although female Otus usually have slightly higher voice).

 

Breeding

Few records suggest nesting occurs Jan–May (1). Presumably nests in tree cavity, but nest with two eggs seen on Tablas I on 29 Mar 2002 was placed at base of leaf in crown of coconut palm (2). No other information.

Not globally threatened. Currently considered Near Threatened. CITES II. Restricted-range species: present in Sulu Archipelago EBA and Palawan EBA. Noted as common on Mantanani I in forest and coconut plantations; no data from elsewhere. Global population estimated to contain 6000–15,000 individuals, with numbers likely declining. Destruction of forest could be long-term threat, but some reports that species generally found away from tracts of undisturbed forest, and also near farmland areas, may indicate ability of at least some races to tolerate human-altered habitats.

Distribution of the Mantanani Scops-Owl - Range Map
Enlarge
  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Mantanani 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). Mantanani Scops-Owl (Otus mantananensis), 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.masowl2.01
Birds of the World

Partnerships

A global alliance of nature organizations working to document the natural history of all bird species at an unprecedented scale.