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.[page needed] 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.[page needed]
分类信息
- 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
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Sri Lanka Woodshrike
Tephrodornis affinis
Small gray songbird with heavy bill, dark mask, and white eyebrow. Underparts pale whitish; in flight note white rump. Inhabits wooded areas and scrub in lowland and lower hills, mostly in the Dry Zone of Sri Lanka; avoids dense, wet forests. Arboreal species usually encountered in pairs or small groups. Pale eyebrow and plain underparts aid identification from similarly heavy-billed (but larger) Large Woodshrike. Vocalizations include soft “chup” notes; song a resonant series, “wee-wee-weet-weet”, accelerating then decelerating. Varies in rapidity of notes and number of notes in series.
Sulphur-rumped Tanager
Heterospingus rubrifrons
Drab medium-gray tanager with lemon-yellow rump. Also look for fluffy white patch at the side of the breast, just under the bend of the wing. Fairly thick bill. Sexes alike. Usually seen in the forest canopy with mixed-species flocks, often in pairs.
Picui Ground Dove
Columbina picui
At rest, the pale brown-gray of the body contrasts with its black bill and iris, pale wing panel framed by a black border. In flight the dark under and upper wing contrasts with a pale wing panel and brown-gray coverts. Tail mostly white, but central tail feathers are gray-brown mostly covering tail from above. Generally found in open areas including grassland, savanna, at the forest edge, and often urban areas. The voice is a series of “U-wooh U-wooh U-wooh U-wooh” notes.
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