Glossy Swiftlet
Collocalia esculenta
A tiny swift with glossy upperparts (many forms showing a greenish-blue tinge), a white belly, and a bat-like, fluttering flight action. Some forms show a white rump. Occurs over most habitats throughout range, often within flocks that regularly mix with other swiftlet species. Away from nesting colonies, always seen in flight. Smaller and shorter-winged than Uniform, Papuan, Bare-legged, Mayr’s, Mountain, and White-rumped Swiftlets. Further distinguished from those species and from Edible-nest, Sulawesi, Seram, and Halmahera Swiftlets by white belly and flight action.
识别特征
This bird is shiny black-blue above, including its rump; sometimes looks black and hooded. Chest black; belly to flanks white with fine black speckles at margins. Wing tips are rounded; underwing is black. Tail rounded with shallow notch and tiny white panels. It is so similar to the white-rumped swiftlet that both its upperparts and underparts must be seen to distinguish between the two. It is 9 to 11.5 cm (3.5 to 4.5 in) in length. Its voice is a soft twittering.
分类信息
The glossy swiftlet was described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Hirundo esculenta. The type locality is Ambon Island, one of the Maluku Islands of Indonesia. The specific epithet esculenta is from esculentus the Latin word for "edible".<p>There are 17 recognised subspecies:<p>Seven taxa that are now recognised as species were previously considered as subspecies of the glossy swiftlet. They were raised to species status based on a detailed analysis of the swiftlets in the genus Collocalia published in 2017. The promoted taxa are:
- 学名
- Collocalia esculenta
- 命名信息
- (Linnaeus, 1758)
- 目
- Apodiformes
- 科
- Apodidae
- 属
- Collocalia
分布与栖息地
The glossy swiftlet is known from Indonesia, Timor, Brunei, Christmas Island, Philippines, Papua New Guinea, the Solomon Islands, Vanuatu and New Caledonia. It is a vagrant to Australia. It is not a migrant.
- 迁徙
- Resident species
行为
The glossy swiftlet nests inside caves and buildings, creating a nest on a vertical or under a horizontal surface by secreting a sticky gel and attaching a kind of string-like grass to the surface. It is seen flying over forests, streams, rivers and roads catching insects in flight.<p>Glossy swiftlets have been considered as possible foster parents for restoring the population of the endangered edible-nest swiftlet in the Andaman Islands.
保护状况
- 种群趋势
- stable
照片
鸟叫声
其他鸟类
Sabine's Puffback
Dryoscopus sabini
A relatively large-billed shrike-like bird primarily found in lowland forest canopy. Male is white below and iridescent black above except for a white rump. The female is overall reddish brown, with more reddish wings and a grayish hood. Similar to several bicolored shrikelike birds in the region, but note Sabine’s Puffback’s large bill, striking sexual dimorphism, and unique song, which consists of a distinctive series of long whistles descending in pitch before arriving at a single repeated pitch, growing louder, and then ending suddenly. Songs can sometimes last several minutes, and are more reminiscent of some Yellow Longbill songs than of the songs of other puffbacks. Calls include typical puffback-like rattles and harsh calls.
Yellow-eared Parrot
Ognorhynchus icterotis
Endangered macaw-like parrot found in Andean cloud forest. Likely only occurs in Colombia now, but formerly ranged as far south as central Ecuador. Notably large and thick-billed with yellow forehead, cheeks, and underparts; red in tail is often not visible. Usually seen in flocks of a few to a dozen birds that fly from one fruiting tree to another giving deep, rich squawks. Dependent on wax palms for nesting and roosting, which have been relentlessly harvested and cleared for pasture.
White-throated Fantail
Rhipidura albicollis
A distinctive fantail, all dark except for a white throat and a short white eyebrow. The tail, often fanned, is a shade darker with white tips to all tail feathers except the central pair. Juvenile is like adult, but with reduced white on face and brownish edges to the dark body feathers. Gives very harsh contact calls. Song is a musical phrase of 6-7 notes that ascends first and then descends. Found in a wide range of wooded habitats, from dense forest to forest edge and gardens, from lowlands up into the mountains.
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