Mountain Serpent-Eagle

Spilornis kinabaluensis

Small, striking eagle with broad, rounded wings. Broad white wing bands and base to tail prominent in flight. At rest, note dark head and chestnut underparts. Darker overall than similar Crested Serpent-Eagle and appears longer-winged in flight. Adult Blyth’s Hawk-Eagle can be similar in flight, but appears smaller-headed, with more intricately-marked underwings. Restricted to north Bornean montane forest, where it can often be seen soaring above ridges. Gives a short, shrill scream.

Identification

The mountain serpent eagle (Spilornis kinabaluensis), also known as the Kinabalu serpent eagle, is a bird of prey that is found in northern Borneo. It is found at altitudes of 1,000–4,100 metres (3,300–13,500 ft) in forest, especially where it becomes stunted. Where their range overlaps, the crested serpent eagle generally occurs at lower altitudes. The mountain serpent eagle is darker than the Bornean subspecies of the crested serpent eagle. The mountain serpent eagle is threatened by habitat loss. However, they occur within the Kinabalu National Park and the Gunung Mulu National Park. Their high-altitude habitats are usually too remote for logging and agriculture, making some of its range secure.

Taxonomy

Genus: Spilornis; Family: Accipitridae; Order: Accipitriformes.

Scientific name
Spilornis kinabaluensis
Authority
Sclater, WL, 1919
Order
Accipitriformes
Family
Accipitridae
Genus
Spilornis

Range and habitat

Migration
Resident species

Behavior

Migration pattern: Resident species.

Conservation

Population trend: declining.

Population trend
declining

Photos

Distribution

Bird Calls

Other Birds

Variable Seedeater

Variable Seedeater

Sporophila corvina

Small seed-eating bird of humid tropical lowlands; fairly common. Found in grassy and weedy areas and forest edges, often in same places as slightly larger Thick-billed Seed-Finch. In pairs or small flocks, mixing readily with Morelet's Seedeaters and other seed-eating birds. Note stubby bill (unlike Thick-billed Seed-Finch) and plain brownish olive plumage of female (not rich brown like seed-finch). Males in Mexico and most of Central America are black. In southern Central America and South America males have variable amounts of white on the underparts and rump, hence the name.

Mediterranean Short-toed Lark

Mediterranean Short-toed Lark

Alaudala rufescens

A small pale lark with a short, finch-like bill. Usually seen foraging on the ground in open country with shrubs, grasses, and extensive bare soil. Stays low to the ground and runs quickly. The extremely variable song is made up of a long series of phrases containing a mix of many different types of notes, often including imitations of other bird species. Sings shorter song phrases than Turkestan Short-toed Lark, with shorter pauses between them. Visually, can be difficult to separate from Greater Short-toed Lark; best features are the heavily streaked breast and flanks and the lack of a well-defined eyebrow. Also extremely similar to Turkestan Short-toed Lark. Separation in overlap zone is difficult and poorly understood, and is complicated by both geographic and individual variation. Mediterranean is slightly more rufous overall, with broader streaks on the breast.

Planalto Tyrannulet

Planalto Tyrannulet

Phyllomyias fasciatus

Tiny flycatcher with a shortish dark bill, dark legs, and a long slender tail. It has an olive-gray back, a pale face, a gray cap, and is pale yellow below. Note the white eyerings and two pale wingbars. Subspecies vary in plumage intensity. Found in the canopy of humid forests and woodlands where it often joins mixed-species flocks. The song is a quiet series of three notes “pew-pew-puuit.”

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