The Owl Pages

Ochre-bellied Boobook ~ Ninox ochracea

Introduction

The Ochre-bellied Boobook is a small to medium-sized owl with no ear-tufts and a relatively long tail. It is also known as the Ochre-bellied Hawk Owl.

Photo Gallery (2 pictures)

  • Ochre-bellied Boobook
  • Ochre-bellied Boobook

Sound Gallery

Typical calls - Dumogo Bone, Sulawesi. © Dave Farrow.

Information

Description: The facial disc is brown, becoming paler towards the yellow eyes. Narrow whitish eyebrows are present. The cere and bill are yellowish-horn, and the chin is whitish. The throat is prominently white, especially so when calling.
Upperparts are dark chestnut, tinged with brown, duskier on the crown. The outer webs of the scapulars have whitish spots, and the wing-coverts have some white dots. The Primaries and secondaries have whitish spots in the outer webs, but the inner webs of the primaries are unmarked. The tail is relatively long and darker brown, barred with narrow, whitish-buff bars. The central tail feathers are sometimes unbarred.
Underparts are tawny, with some indistinct paler barring on the upper breast. From the lower breast towards the belly shades gradually into ochre-tawny with some diffuse darker dots.
Tarsi are feathered to the base of the bristled toes, which are yellowish-grey with dark horn claws.

Size: Length 25-29cm. Wing length 180-196mm. Tail length 92-105mm. No weight data available. Females are usually smaller than males.

Habits: An elusive and little-known bird. It roosts during the day in dense vegetation, singly or in pairs.

Voice: A series of hoarse, guttural notes which develop into a series of double-note calls - Krurr-krurr.

Hunting & Food: This owl feeds mainly on insects hunted from perches in the mid-storey of the lower tree canopy.

Breeding: The breeding habits of the Ochre-bellied Boobook are unknown.

Habitat: Mainly mature secondary and riverine forests. Ranges from lowlands up to about 1000m above sea-level.

Distribution: Sulawesi, Buton and Peleng Islands in Indonesia.

Range of Ochre-bellied Boobook (Ninox ochracea)
Range of the Ochre-bellied Boobook Ninox ochracea

Status: Rather rare. Listed as 'Near Threatened' by Birdlife International.

Original Description: Schlegel, Hermann. 1866. Nederlandsch Tijdschrift voor de Dierkunde [Dutch journal/magazine for Zoology], 3, p. 183.

References:
BirdLife International. 2020. "IUCN Red List of Threatened Species". IUCN.
Birdlife International. 2020. "Birdlife International Data Zone".
Boyer and Hume. 1991. "Owls of the World". BookSales Inc.
del Hoyo, Elliott & Sargatal. 1999. "Handbook of the Birds of the World: Barn Owls to Hummingbirds". Buteo Books.
International Ornithological Congress. 2020. "IOC World Bird List - Owls".
König, Claus & Weick, Friedhelm. 2008. "Owls: A Guide to the Owls of the World (Second Edition)". Yale University Press.
Ninox ochracea at Xeno-canto.

See also: Other owls from Asia, Genus: Ninox.

Page by Deane Lewis. Last updated 2020-11-07.