Styan's Bulbul
Pycnonotus taivanus
Relatively plain songbird, olive above, whitish below, with black cap, white face, and black moustachial mark. Somewhat similar to more widespread Light-vented Bulbul, with which it hybridizes, but adult Styan’s has heavier bill, solidly black cap, white plumage surrounding the eye, and small red dot in black moustachial stripe (difficult to see). Juvenile duller above (greenish in wings), white below, lacking strong head pattern. Inhabits open forest, forest edge, parks, and gardens. Often perches on telephone poles or fences, from which it gives a melodic song similar to that of Light-vented but higher in pitch and more musical.
识别特征
Styan's bulbul has a very similar appearance to the light-vented bulbul, but they differ in the patterns on the head. Styan's bulbul has a completely black crown with white feathers around its eye, except for a black moustachial stripe below the beak. Hybrids are intermediate between the two species, with the moustachial stripe and white feathers around the eye, but the white feathers extend behind the crown.
分类信息
Alternate names for Styan's bulbul include the Formosan black-headed bulbul and Taiwan black-headed bulbul. The latter name is also used to refer to a subspecies of the light-vented bulbul.
- 学名
- Pycnonotus taivanus
- 命名信息
- Styan, 1893
- 目
- Passeriformes
- 科
- Pycnonotidae
- 属
- Pycnonotus
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Christmas Shearwater
Puffinus nativitatis
A medium-sized shearwater with uniformly dark brown plumage and no contrasting markings. Flies more steadily than most shearwaters and usually flies low over the water. Large numbers nest on most of the Northwestern Hawaiian Islands. A few pairs nest on Moku Manu Islet off the eastern coast of Oahu. Often seen from boats in the Northwestern Hawaiian Islands, but rarely on the main islands and rarely from shore. The voice, usually heard only at breeding colonies, is a low moan.
White Woodpecker
Melanerpes candidus
Strikingly-plumaged medium-sized woodpecker, mostly white with dark wings and back contrasting with yellow goggles with a dark eye stripe. Males have a yellowish nape. Often seen in small groups foraging in open areas, savannas, and dry forests. Makes a series of ternlike “krreee, krreeee” calls.
Bare-cheeked Trogon
Apaloderma aequatoriale
A trogon of lowland rainforests, almost always found in the forest interior, away from forest edges. Males and females have distinctive bare yellow facial skin below their eyes and between their eyes and bill. Both sexes have green backs and uppertails, red chests and vents, and finely barred wings. The species often calls motionless in the subcanopy, giving a series of 6-10 sad, descending coo notes, repeating these series 2-3 times per minute. Similar to the larger Narina Trogon, but Bare-cheeked Trogon is told apart by its song, its closed-canopy forest habitat, and the purely green tones on its head, back, and uppertail.
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