Madagascar Fish-Eagle
Icthyophaga vociferoides
Large, short-tailed, fish-eating eagle. Adult has a pale head and tail. Immature is darker, though with a paler buffy head. This critically endangered bird is found very locally along the west coast of western and northern Madagascar. Its habitats include freshwater lakes and rivers, mangroves, coastline, and islands. Quite vocal, giving a mournful series of “cheow” notes, usually in a duet by a pair. Separated from all other raptors in its range by its large size and short tail.
识别特征
The Madagascar fish eagle is a medium-sized sea eagle, 60–66 cm (23.5–26 in) long and with a wingspan of 165–180 cm (65–71 in). The body and wings are dark brown, with a pale brown head and a white tail; the bill is blackish with a paler base, and the legs are pale grey. Males weigh 2.2–2.6 kg (4.9–5.7 lb), while the slightly larger females weigh 2.8–3.5 kg (6.2–7.7 lb).<p>Its closest relative is the African fish eagle, Icthyophaga vocifer. Together, they form a distinct species pair lineage of sea-eagles, which separated soon after the divergence of the genus; they retain the ancestral dark beak, talon, and eye, but unlike Haliaeetus species, they always have at least partially white tails, even while juvenile. As in other sea-eagle species pairs, one species (the Madagascan fish eagle in this case) has a tan head, while the other has a white one.
分类信息
Genus: Icthyophaga; Family: Accipitridae; Order: Accipitriformes.
- 学名
- Icthyophaga vociferoides
- 命名信息
- (des Murs, 1845)
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Icthyophaga
分布与栖息地
This species is endemic to Madagascar, where it survives in low numbers along the northwest coast north of Morondava. The range of this eagle is within the Madagascar dry deciduous forests. The principal locus of population according to the United Nations Environmental Programme is in the Analova region; 20 to 25 breeding pairs were there as of the 1980s. A more recent survey by Garbutt and Hogan report a smaller concentration of at least three breeding pairs in the Anjajavy Forest along the Indian Ocean, where several streams discharge north of Anjajavy Village.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Buru Oriole
Oriolus bouroensis
A large gray-brown oriole with a straight, heavy bill. Main field mark is an ill-defined dark mask on the feathered face. Underparts paler than upperside. Juveniles display rufous-edged wings. Singles or pairs can be found in forest, forest edge, mangroves, and woodlands in lowlands and foothills. Similar to Buru Friarbird, but dark facial area is feathered, not bare; bill shape is thick and straight; and tail is shorter. Variable song consists of around three fluty notes, often rising and loudest on final note: “ku-wuWOOO.”
Cuban Black Hawk
Buteogallus gundlachii
A large, broad-winged hawk of forests. Body of adult is entirely dark brown to black. Differs from perched vultures in having feathered head plus yellow bill and legs. Best distinguished in flight by bold white patches near end of wings and by its large size. Immature is brown above and streaked below; somewhat resembles immature Broad-winged and Red-tailed Hawks. When perched, immature is most easily told from Red-tailed Hawk by its boldly patterned head. In flight, note the Cuban Black Hawk's much broader wings and shorter tail.. Call is a loud, squeaky “weet-WEET-whew” or “weet-WEET-whew-puh;” also gives a harsh scream.
Pale-eyed Bulbul
Pycnonotus davisoni
Distinctive bulbul endemic to the Irrawaddy River delta in southern Myanmar. Note namesake white irises, as well as the yellow facial stripes. Gray-brown body contrasts with olive wings and bright yellow vent. Inhabits lowland evergreen broadleaf and swamp forests in its restricted range. Formerly treated as the same species as Stripe-faced Bulbul (under “Stripe-throated Bulbul”), with which it overlaps in far southeastern Myanmar; note present species’ pale eyes and darker body. Song is throaty and melodious.
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