Fiscal Flycatcher
Sigelus silens
A large pied flycatcher that is most commonly mistaken for Southern Fiscal. However, the upright stance and slender unhooked bill are distinctive flycatcher traits, and the pattern of white in the flight feathers and basal windows of the tail is diagnostic. The female is duller than the male. Singles and pairs frequent a variety of open country habitats, including gardens, parks, shrubland, and woodland, where they perch conspicuously and hawk insect prey from the ground or aerially. The species is mostly silent but occasionally it utters a thin high-pitched song. The similar Southern Fiscal is more robust than the Fiscal Flycatcher, with a chunky hook-tipped bill, a white V-pattern on the shoulders, and a long tail with white outer feathers.
识别特征
This black and white bird gets its name from its resemblance to the northern and southern fiscal shrikes (previously considered one species, common fiscal), shrikes that in turn get the name from their black and white suit-and-tie appearance reminiscent of the taxman (‘fiscal’). The male may be confused with the fiscal shrikes, but the shrikes have heavy, hooked bills, white patches on the shoulder rather than the lower wing, and no white on their longer tails. The resemblance is assumed to be an example of Batesian mimicry.<p>The fiscal flycatcher is 17–20 cm in length. The adult male is black above and white below with white wing patches and white sides to the tail. The female is brown above, somewhat like an immature fiscal shrike, not black. The juvenile is like the female but duller and with brown spots and scalloping above and below.<p>The song is a weak chittering, and the alarm call is tssisk.<p>The fiscal flycatcher is larger than the male collared flycatcher, which has a white collar and lacks white wing panels.
分类信息
The fiscal flycatcher was previously the only member of the genus Sigelus but was moved to Melaenornis based on the results of a molecular phylogenetic study published in 2010.
- 学名
- Sigelus silens
- 命名信息
- (Shaw, 1809)
- 目
- Passeriformes
- 科
- Muscicapidae
- 属
- Sigelus
分布与栖息地
- 迁徙
- Resident species
行为
The fiscal flycatcher builds an open-cup nest from thin stems and other plant material, and lined with plant down. It is placed in a dense bush or thicket in a tree. In these respects it resembles the fiscal shrike.<p>The fiscal flycatcher feeds on insects, often taken in flight, but also on non-flying prey such as caterpillars. It may prey on the spiny caterpillars or "woolly worms" of tiger moths, after first scrubbing them on the ground or on bark, thereby denuding them of the worst of their spines. It also feeds on various species of small wild berries, such as Halleria and Chrysanthemoides, and from nectar-rich flowers such as some Aloe. In suburban gardens it commonly feeds opportunistically on domestic scraps.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Amethyst Woodstar
Calliphlox amethystina
Tiny, short-billed hummingbird of forests, forest edges, and savanna woodlands. Both sexes are green on the back with a white band across the rump, but males have glossy pink throat and a deeply forked tail. Females have a white throat, a short tail, and cinnamon flanks and undertail.
Wrinkled Hornbill
Rhabdotorrhinus corrugatus
Brightly-colored medium-large hornbill. Both sexes are black with bare facial skin, blobby throat “pouches”, yellowish tails, and casqued bills. Male has pale yellowish throat and a yellow-and-red bill and casque. Female has a plain yellow bill and casque and bare blue skin around the eyes and on the “pouch”. Forages in pairs and small flocks in lowland rainforest. Gives oddly sharp grunting barks.
Seychelles Kestrel
Falco araeus
Unusually small kestrel with a gray head, a rufous back, unmarked buff underparts, a barred tail, and a dark “moustache” mark on the face. Found on several of the granitic Seychelles Islands. Originally found in areas of rainforest with cliffs and other rocky areas; now found in secondary scrub, cultivated areas, plantations, and towns, as well as in remnant natural habitat. Unlike other kestrels, does not hover. Call is a high, repeated “krii.” Shares general falcon shape with migrant and vagrant falcons, including Eleanora’s and Sooty Falcons, but smaller, with shorter, less pointed wings.
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