Cock-tailed Tyrant
Alectrurus tricolor
A remarkable flycatcher; males are black above and white below with a broad tail that has longer central feathers and is usually held perpendicular to the others and spread like a fan. Females are mottled brown above and whitish below without the cocked tail. Occurs in open, humid, and tall grass savanna areas that have been well preserved. Mostly silent.
识别特征
The cock-tailed tyrant (Alectrurus tricolor) is a Vulnerable species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, and Paraguay.
分类信息
Genus: Alectrurus; Family: Tyrannidae; Order: Passeriformes.
- 学名
- Alectrurus tricolor
- 命名信息
- (Vieillot, 1816)
- 目
- Passeriformes
- 科
- Tyrannidae
- 属
- Alectrurus
分布与栖息地
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
其他鸟类

Saturnine Antshrike
Thamnomanes saturninus
Fairly small antshrike. Males are dark gray with a black throat. Females are tinged brown above and tawny below with a contrasting whitish throat. Found in the understory of lowland humid forest. Often leads mixed-species flocks; occasionally attends army-ant swarms. Sings a series of gradually ascending notes that ends with a harsh final note. Similar to Cinereous Antshrike, which can occur in the same flocks, but differs in throat color and in song.

Black-breasted Kite
Hamirostra melanosternon
A large dark raptor. In flight it shows a very short stubby tail, and has large pale wing panels. Holds wings up high in a slight V-shape while soaring. Typically a species of inland deserts, it occasionally wanders closer to the coast.

Serra Antwren
Formicivora serrana
Small, strikingly-plumaged antbird with a long tail and a very restricted range. Inhabits the understory of low stature or regenerating forests, forest edges, scrub, and abandoned plantations where it is very active and occasionally joins mixed-species flocks. Much plumage variation, with coastal males near Rio de Janeiro (formerly split as Restinga Antwren) being almost uniformly sooty-black with only slightly grayer back and spotted white wingbars. Two more northerly subspecies vary between rufous-brown and dark gray above, but both are black below with a bold white eyebrow and white wing spots. In all subspecies, females are pale whitish below and brown above with a bold white eyebrow. Male song is a monotonous series of harsh chip notes; female gives nasal squeaks.
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