Bar-headed Goose
Anser indicus
Striking and distinctive goose. Bold black-and-white head and neck pattern unlike any other goose; also note orangey-yellow bill and legs. In flight appears mainly pale gray with broad black trailing edge to wings. Breeds around lakes and marshes on highland plateaus; winters in lowland wetlands and fields. Native to East and South Asia, but escapees from waterfowl collections are occasionally seen free-flying elsewhere in the world.
识别特征
The bird is pale grey and is easily distinguished from any of the other grey geese of the genus Anser by the black bars on its head. It is also much paler than the other geese in this genus. In flight, its call is a typical goose honking. A mid-sized goose, it measures 71–76 cm (28–30 in) in total length and weighs 1.87–3.2 kg (4.1–7.1 lb).
分类信息
The grey goose genus Anser has no other member indigenous to the Indian region, nor any at all to the Ethiopian, Australian, or Neotropical regions. Ludwig Reichenbach placed the bar-headed goose in the monotypic genus Eulabeia in 1852, though John Boyd's taxonomy treats both Eulabeia and the genus Chen as subgenera of Anser.
- 学名
- Anser indicus
- 命名信息
- (Latham, 1790)
- 目
- Anseriformes
- 科
- Anatidae
- 属
- Anser
分布与栖息地
Breeding range: PAL : c Asia. Non-breeding range: n India.
- 繁殖区
- PAL : c Asia
- 非繁殖区
- n India
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类

Blue Paradise-Flycatcher
Terpsiphone cyanescens
A medium-sized, long-tailed bird of lowland forest understory on Palawan and neighboring islands. Has a blue bill, eye-ring, chest, and head with a slight crest at the back. Back, wings, and tail are blue in the male and rufous in the female. Female is distinctive. Male is similar to Black-naped Monarch, but larger, and lacks the black mark on the back of the head. Song consists of a rapidly pulsating series of fairly high-pitched nasal notes that increase in volume.

San Blas Jay
Cyanocorax sanblasianus
Handsome blue-and-black jay of tropical forests, woodlands, and gardens endemic to west Mexico. Usually in small groups, which can be noisy and conspicuous or very quiet and easily overlooked; often with Yellow-winged Caciques. Around the town of San Blas (in Nayarit, Mexico), appreciably larger Purplish-backed Jay occurs at southern end of its range (and northern end of San Blas Jay’s range). Purplish-backed is deep purplish blue on back and tail, not strikingly two-toned blue-and-black like San Blas Jay, and has bright yellow legs. Voices also very different. Purplish-backed occurs in mangroves and adjacent woodlands in and around town while San Blas Jay occurs in foothill forest of coffee plantations south of town.

Papuan Treecreeper
Cormobates placens
A medium-sized creeping bird of montane forest. Mainly a dull, gray-brown color with pale flecks on the flanks, a paler throat. Female has a rufous moustache stripe. The only treecreeper on New Guinea. Climbs up a trunk, then flies down to the base of another trunk. Sometimes followed by a fantail. The only other similar colored birds with this behaviour are the sittellas, which are distinctively smaller and most have a streaked back. Call, a level series of piping notes which increase in volume.
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