Crested Drongo
Dicrurus forficatus
Bold black fork-tailed bird with a towering crest. Juveniles have some pale fringes and a reduced crest, but still show the forked tail. Found in all types of forest at low and middle elevations, and less commonly in scrub, in villages, in plantations, and at high elevation. Perches prominently in the open, swooping out to catch insects on the wing. Often joins mixed feeding flocks with other birds. Fearless bird that doesn’t hesitate to mob mammalian predators or raptors. Song is a repeated sequence of whistles, creaks, and rasps. Forked tail and crest make it unmistakable within its range.
识别特征
The adult male and female are almost entirely black, with a blue-green sheen. The distinctive crest consists of elongated feathers on the forehead. The forked tail is also distinctive of the adult birds. D. f. potior is larger and has broader tail feathers.
分类信息
In 1760 the French zoologist Mathurin Jacques Brisson included a description of the crested drongo in his Ornithologie based on a specimen collected in Madagascar. He used the French name Le grand gobe-mouche noir hupé de Madagascar and the Latin Muscicapa Madagascariensis nigra major cristata. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the crested drongo. Linnaeus included a brief description, coined the binomial name Lanius forficatus and cited Brisson's work. The specific name forficatus is Neo-Latin for "scissor-shaped". This species is now placed in the genus Dicrurus that was introduced by French ornithologist Louis Pierre Vieillot in 1816.<p>Two subspecies are recognised:<p>The common name of drongo, now applied to all members of the family Dicruridae, was originally a Malagasy word from the Betsimisaraka dialect; more commonly it is called railovy in Malagasy.
- 学名
- Dicrurus forficatus
- 命名信息
- (Linnaeus, 1766)
- 目
- Passeriformes
- 科
- Dicruridae
- 属
- Dicrurus
分布与栖息地
The nominated race is endemic to Madagascar, and found throughout the island, and some of the larger inshore islands including Nosy-Bé. The Dicrurus forficatus potior subspecies on only found on the Comoro Islands.<p>Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, and dry savanna, typically below 1,000 meters.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
- 种群趋势
- unknown
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分布
鸟叫声
其他鸟类
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Asthenes virgata
Chunky, streaked brown bird with a long tail that is often held cocked. Warm reddish brown with extensive white streaking through its head, back, and sides. Forages on or near the ground in open, high-elevation habitats, often with tall bunches of grass; occasionally found around the treeline or the edges of Polylepis forests. Compared to the similar Line-fronted Canastero found in more heavily vegetated habitats, Junin Canastero is larger with a streaked back, a thicker bill, and a paler white breast with more diffuse streaking.
Yellowhammer
Emberiza citrinella
Male distinctive, with bright yellow head, yellowish underparts. Female is drab and streaky, usually with yellowish wash to face, and often found with bright males. Note bright rusty rump. White outer tail feathers flash in flight. A species of heathland, forest clearings, and farmland with hedges. Male sings from a prominent perch, giving a dry and uninspired “dzidzidzidzidzi.” Forms flocks in winter, feeding mainly on ground in search of seeds. A native of Eurasia, introduced to New Zealand and a few adjacent islands.
Egyptian Vulture
Neophron percnopterus
Odd-looking, pale, medium-sized vulture with a bare, solemn-looking yellow face. The bill is narrow with a black tip. In flight, the deep-fingered black flight feathers contrasting with white inner feathers may recall White Stork, but the tail is wedge shaped. Juveniles are dirty brown with bare gray faces. An inhabitant of open or semiopen areas, nesting on cliffs and less frequently in trees. Scavenges at rubbish dumps in addition to carcasses, but sadly is in decline over much of its wide range.
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