Negros Scops-Owl
Otus nigrorum
A fairly small owl of lowland and foothill forest on the islands of Negros and Panay, where it is the only scops-owl. Dark brown above and pale gray below, with a rufous face bordered with a black line and a pale gray V-shape between the eyes. Occurs together with Luzon Boobook, but Negros Scops-Owl has orange rather than yellow eyes and lacks the brown-streaked chest. Song is a descending series of upslurred yelps.
识别特征
EBird describes the bird as "A fairly small owl of lowland and foothill forest on the islands of Negros and Panay, where it is the only scops-owl. Dark brown above and pale gray below, with a rufous face bordered with a black line and a pale gray V-shape between the eyes. Occurs together with Luzon boobook, but Negros Scops-Owl has orange rather than yellow eyes and lacks the brown-streaked chest. Song is a descending series of upslurred yelps."<p>It is the smallest and palest of the endemic Philippine scops owl complex.<p>Negros scops owls prey at night on insects. They live alone or in monogamous pairs. They breed throughout the year, laying clutches of 1 or 2 eggs. They nest in tree hollows in forests of the Philippine lowlands.
分类信息
- 学名
- Otus nigrorum
- 命名信息
- Rand, 1950
- 目
- Strigiformes
- 科
- Strigidae
- 属
- Otus
分布与栖息地
Its natural habitats are tropical moist lowland and montane primary and secondary forest up to 1,000 meters above sea level. While they can tolerate secondary forest, they have the highest population densities and health in primary (old-growth) forest.<p>The IUCN Red List has assessed this bird as vulnerable with the population being estimated at 1,000 to 2,499 mature individuals. Its main threat is habitat destruction through both legal and Illegal logging, conversion into farmlands through slash-and-burn, charcoal burning, and mining. Habitat loss on both Negros and Panay has been extensive. By 2007, Negros and Panay had a 3% and 6% remaining forest cover with a huge chunk of this being in higher elevation forests where this bird does not thrive. Despite the already paltry numbers, these figures are still continuing to decline due to the above-mentioned threats.<p>There are currently no species-specific conservation plans. It occurs in a few protected areas in Northern Negros Natural Park, Mount Kanlaon National Park and Northwest Panay Peninsula Natural Park. However, as with most areas in the Philippines, protection from hunting and illegal logging is lax.
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
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Geranoaetus melanoleucus
Large raptor with broad wings and short tail. Fairly common and widespread in South America, from high elevations in the Andes of Colombia to the lowlands in Tierra del Fuego. Adults have a dark gray head and breast contrasting with a white belly. Wings are silvery-gray from above; from below, the coverts are white contrasting with dark flight feathers. Note the shape in flight with bulging secondaries, tapered wingtips, and a very short tail. Young birds are brown and streaky, tricky to distinguish from Variable Hawk. Look for bulkier shape and shorter, more graduated tail.
Tufted Tit-Spinetail
Leptasthenura platensis
Small, charismatic species with a long spiky tail and a short crest. Has generally pale gray-brown plumage with a streaked throat and crest. Occurs in woodland, scrub, and gallery forests. Forages acrobatically from the understory up to the canopy. The song starts with sharp notes and ends with a very thin trill: “tsi, tsirrrrr.”
Rio Orinoco Spinetail
Synallaxis beverlyae
A grayish riverine spinetail with rufous crown and shoulders. Known from only a few sites but locally common, alone or in pairs, mostly in young riverine successional vegetation (especially dense scrub) on sedimentary islands in the Orinoco River. Sexes similar. Easy to find by voice, a rattling series “quip, pip-pip-pip-pip” ending in a trill “prrr”. Very similar to Pale-breasted Spinetail, but differs in grayish body, less contrasting rufous patches, different voice, and river island specialization. Endemic to the Orinoco River of Venezuela.
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