Gurney's Pitta
Hydrornis gurneyi
Highly range-restricted and declining pitta. Only known healthy population is in far southern Myanmar; now all but functionally extinct in southern Thailand. Male has purple-blue crown, bright yellow half-collar, and black-and-yellow underparts. Female has a pale yellow crown and black-barred yellowish breast and belly. Inhabits lowland rainforests, where it forages singly or in pairs in gullies and ditches, often near water. Gives a raptor-like “chiiir!”.
识别特征
The male has a blue crown and black-and-yellow underparts; the rest of the head is black, and it has warm brown upperparts. The female has a brown crown and buffy-whitish underparts.
分类信息
Gurney's pitta was described by the amateur ornithologist Allan Octavian Hume in 1875 and given the binomial name Pitta gurneyi. The species was moved to the resurrected genus Hydrornis based on the results of a molecular phylogenetic study published in 2006. The genus Hydrornis had been introduced by the English zoologist Edward Blyth in 1843. The specific epithet was chosen to honour the amateur ornithologist John Henry Gurney (1819-1890).
- 学名
- Hydrornis gurneyi
- 命名信息
- (Hume, 1875)
- 目
- Passeriformes
- 科
- Pittidae
- 属
- Hydrornis
分布与栖息地
- 迁徙
- Resident species
保护状况
Gurney's pitta is endangered. It was initially thought to be extinct for some time after 1952, but was rediscovered in 1986. Its rarity has been caused by the clearance of natural forest in southern Burma and peninsular Thailand.<p>Its population was estimated at a mere nine pairs in 1997, then believed one of the rarest bird species on earth. A search for it in Burma in 2003 was successful and discovered that the species persisted at four sites with a maximum of 10-12 pairs at one location. This granted the species a reassessment from the IUCN, going from critically endangered to endangered. Later on, further research completed in Burma by 2009 provides strong evidence that its global population is much greater than previously estimated, owing to the discovery of several new territories in this country<p>The pitta was voted the "most wanted bird in Thailand" by bird watchers visiting that country.<p>A study conducted in 2016, led by scientist Nay Myo Shwe, visited 142 sites the pitta has been previously observed in Myanmar; it was only in 41 that any trace of the bird was found. It was estimated that more than 80% of the bird's habitat was lost from 1999-2017, due to palm oil plantations; the IUCN subsequently re-assessed the species status as critically endangered. The pitta is considered functionally extinct in Thailand.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Brown Tanager
Orchesticus abeillei
Large and rather uncommon tanager found in the canopy of humid forests where it usually accompanies mixed-species flocks. Plain brown overall with a cinnamon face, wings, and tail and a dark mask running through the eyes. Its plumage mimics the Buff-fronted Foliage-gleaner, with which it is easily confused and it may even occur in the same flock, but note the tanager’s thicker bill. The thin rising song is very high-pitched.
Indigo-winged Parrot
Hapalopsittaca fuertesi
Rare and endangered parrot restricted to high elevations in the central Andes of Colombia. Plumage is golden green with a sapphire crown; the blue and red in the wings and tail are usually evident when perched, and can be more striking when seen in flight. Usually encountered in groups of several to a dozen birds that fly from fruiting tree to fruiting tree in compact flocks. Formerly very difficult to find, but in recent years it has been reliably encountered along dirt roads high above the town of Santa Rosa de Cabal.
Lizard Buzzard
Kaupifalco monogrammicus
A small, chunky, grayish hawk with a distinctive pale throat spliced by a vertical black throat stripe; has one or two (rarely) broad white bars across the black tail. Occurs in singles or pairs in savanna and is often seen perched in the open, watching for insects, lizards, snakes, and other small vertebrates. Calls a loud shrill “peeee-eeeuuu” or repeated “whuuua-whuuua-whuuaa”. It is shorter-legged and has a more powerful build than most sparrowhawks. Most similar to Gabar Goshawk, both having a broad white rump band in flight, but Lizard Buzzard is distinguished by its distinctive throat pattern, pale tail bands, and pale tail tips.
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