Isabela Oriole
Oriolus isabellae
A medium-sized bird of lowland forest, including secondary habitats and bamboo in northern Luzon. Yellow underparts blend into olive upperparts. Bill fairly long and silver. Forages for fruit and insects, sometimes in mixed-species flocks. Similar to White-lored Oriole, but slightly larger, with a silver rather than red bill and no white spot in front of the eye. Song consists of a medium-pitched, upslurred whistle, “hoowit!”.
分类信息
The Isabela oriole is commonly confused with the much more common white-lored orioles and black-naped orioles. It is differentiated by its extremely large bill grey bill, uniform olive-yellow plumage and lack of white on its lores.<p>The Isabela oriole is most closely related to the white-lored oriole. Both species are closely related to the paraphyletic Philippine oriole. The Isabela oriole is sometimes considered to form a superspecies with the dark-throated oriole and the Philippine oriole. Alternate names for the Isabela oriole include the green-lored oriole and olive-lored oriole.
- 学名
- Oriolus isabellae
- 命名信息
- Ogilvie-Grant, 1894
- 目
- Passeriformes
- 科
- Oriolidae
- 属
- Oriolus
分布与栖息地
The Isabela oriole is now confined to the lowland forests in the Northern Sierra Madre mountain range in Luzon. It is frequently seen in the canopy and middle storeys of forests and also forest edge or patches up to 440 masl. It is seen in mixed flocks with other birds such as bar-bellied cuckooshrikes, black-and-white trillers, blackish cuckooshrikes and other forest birds.<p>It has not been recorded in Bataan province since 1947 despite an intensive search done in 2014.
- 迁徙
- Resident species
保护状况
The Isabela oriole has a known population of about 50-250 mature individuals and is assessed as Critically Endangered based on its extremely small and fragmented population. Organisations such as Buhay-Ilang and the Mabuwaya Foundation are working to conserve them with educational programs and festivals celebrating this bird. The oriole is now a Flagship species for the North Sierra Madre National Park.<p>Since 2015, a research and conservation project for the Isabela Oriole has been implemented in Baggao by the Mabuwaya Foundation. Information, education and communication, community consultations are held in Baggao with the local government, the Department of Environment and Natural Resources and local residents. Plans are underway to declare the oriole site in Baggao a Critical Habitat and to encourage ecotourism.
- 种群趋势
- declining
照片
分布
其他鸟类

Bismarck Imperial-Pigeon
Ducula melanochroa
An entirely black pigeon with intricately white-edged wing feathers and red feet. Occurs mostly in undisturbed old-growth hill forest. In flight, resembles Metallic Pigeon and Yellow-legged Pigeon, but lacks the white throat of the former, and has pink legs and an entirely dark head, unlike the latter. Rarely heard, but has been known to utter deep booming sounds.

Masked Bowerbird
Sericulus aureus
A very colorful bowerbird of foothill and lower montane forests. Male is bright orange and yellow with a black face, edge to the wing and tail. Female has yellow underparts and a brown back with brown scaling on the chest. Forages for fruit in the canopy but perches out in the early morning. Golden Myna is superficially similar, although the male Masked Bowerbird lacks the black back and belly. Call, a loud rasping note that sounds rather like a taser.

Giant Nuthatch
Sitta magna
The largest nuthatch in the world, about the size of a bulbul. Coloration similar to many other nuthatches: gray above and white below, with a thick black line through the eye. Picky in its habitat preferences and as a result generally uncommon or absent through much of its range; requires extensive stands of mature tall pines in foothills and montane regions. Can be quite loud, giving a hoarse chatter reminiscent of a corvid; also gives a clipped fluty whistle.
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