Comoro Scops-Owl
Otus pauliani
Small compact owl with very small ear tufts that are often invisible. Rufous-brown on the underparts and dark brown on the back. Found in montane forest and along forest edge on the island of Grand Comoro. Fairly shy and wary. The vocalization is a quiet, repeated “pru” that is given at a rate of about two notes per second, sometimes for many minutes at a stretch. Easily identified, as the only other owl on Grand Comoro is the much larger Barn Owl.
识别特征
The Karthala scops owl lacks ear-tufts and comes in two colour forms, a light morph and a dark morph. The light morph is dark greyish-brown on the upperparts with fine barring and pale spots along the scapulars. The underparts are reddish-buff with a dense pattern of fine barring on the flight feathers and tail. The dark morph is overall dark chocolate brown but no specimen of a dark morph individual has been taken. It measures approximately 20 cm (7.9 in) in length and the wingspan is 45 cm (18 in).<p>Its call is a whistled "toot", which is given repeatedly with one second intervals.
分类信息
The Karthala scops owl was formerly considered to be a subspecies of the Madagascar scops owl (Otus rutilus), but with the other Comoro Islands scops owls, it is now regarded as a separate species.
- 学名
- Otus pauliani
- 命名信息
- Benson, 1960
- 目
- Strigiformes
- 科
- Strigidae
- 属
- Otus
分布与栖息地
Endemic to the island of Grande Comore, the Karthala scops owl is found only on Mount Karthala, an active volcano. Here it inhabits the montane forest, some secondary growth and the tree-heath above the forest.
- 迁徙
- Resident species
行为
Nocturnal and very territorial, the Karthala scops owl will approach an imitation of its call, otherwise almost unknown. It has relatively weak talons so probably feeds on insects and other invertebrates. It is thought to nest in tree cavities.
保护状况
- 种群趋势
- declining
照片
分布
其他鸟类
Brown-capped Vireo
Vireo leucophrys
Rather plain vireo of humid evergreen and pine-evergreen forest in highlands and foothills. Northern populations (Mexico to Nicaragua) look and sound much like Warbling Vireo, but with browner upperparts and a distinctly brown cap. Usually at middle to upper levels in trees, where sings persistently in summer. Southern populations (Costa Rica to South America) have different song and distinct yellowish wash on breast and belly.
Harpy Eagle
Harpia harpyja
Massive bird of prey, restricted to mature forest and always rare. Enormous talons. Adult is dark gray above, paler below, with obvious dark breast band. Note more obvious black-and-white barring on wings in flight to help separate it from Crested Eagle. Juvenile has whiter head than adult and no breast band; very similar to Crested Eagle but note longer crest with two points (separated in the middle). Feeds on monkeys and sloths. Usually seen perched in the canopy or flying across a road or river, does not soar.
Bougainville White-eye
Zosterops hamlini
Small social songbird, often encountered foraging in upper levels of forest. Mostly olive-green above with a yellow undertail. Belly, chest, and throat gray. Note the smudgy black patch in front of the eye and bright white eye-ring. Found in forest and forest edge from around 900 to 1950 meters of elevation. Similar to Yellow-throated White-eye, but upperparts less yellow and throat gray. Common calls include a loud mellow “peeeu” and high-pitched “peep-peep” foraging calls.
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