Many-colored Rush Tyrant

Tachuris rubrigastra

Attractive, multicolored little bird of fresh and brackish marshes with rushes and reed beds; known in some areas as siete colores (seven colors). Feeds actively in rushes and adjacent vegetation, sometimes on adjacent muddy shorelines. Boldly patterned and colorful plumage is unique among flycatchers and should not be confused if seen well; note the bold white wingband and white tail sides, which show distinctly in flight.

识别特征

The many-colored rush tyrant is a small bird, 11–11.5 cm (4.3–4.5 in) in length. As the bird's name suggests, the plumage is very colourful. The back and rump are green while the underparts are yellow apart from the white throat, black breastband and red undertail-coverts. The face is dark blue-grey, there is a yellow stripe over the eye and the crown is dark with a red patch that is often concealed. The wings and tail are dark with a white wingbar and white outer tail-feathers. Females are duller than the males.

分类信息

A 2013 DNA-based study of South American suboscines found that the many-colored rush tyrant belonged to an isolated lineage that had been separated from other suboscines for around 25 million years. The authors proposed that it would be better placed in its own monotypic family Tachurididae. It was subsequently suggested that the name should be Tachurisidae. The placement in a separate family was followed by Edward Dickinson and Leslie Christidis in the fourth edition of the Howard and Moore Complete Checklist of the Birds of the World, but has not yet been adopted by other authorities.<p>Four subspecies are recognised. The nominate T. r. rubrigastra is the most widespread, occurring from south-east Brazil to southern Argentina and central Chile, T. r. alticola is found in the Andes of south-east Peru, west Bolivia and north-west Argentina, T. r. libertatis is found in coastal Peru while T. r. loaensis is restricted to Antofagasta Region in northern Chile.

学名
Tachuris rubrigastra
命名信息
(Vieillot, 1817)
Passeriformes
Tyrannidae
Tachuris

分布与栖息地

迁徙
Complete migrants

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Least Grebe

Least Grebe

Tachybaptus dominicus

This wee little grebe is dark gray overall with paler fluffy bum. The face is dark in breeding plumage; paler with a whitish throat in nonbreeding plumage. Also note piercing yellow eye and thin, sharply pointed bill. Compare with Pied-billed Grebe, which is larger, browner, and thicker-billed. Widespread throughout Middle and South America; very limited range in the U.S. Found in marshy ponds, often with extensive vegetation. Usually seen singly or in pairs, sometimes in small groups. Frequently dives underwater.

Pearly-vented Tody-Tyrant

Pearly-vented Tody-Tyrant

Hemitriccus margaritaceiventer

A very small flycatcher with a long bill for its size and a yellow eye. It is olive-brown above with whitish wingbars and indistinct streaking on white underparts. Considerable variation exists among subspecies in the color of the belly (gray or yellow) and the color of the back (dark gray or brown). Occurs in woodlands, shrubby habitats, and pastures with shrubs where it can be found foraging in the lower and middle levels; mostly in pairs. The song is sharp and descending series of trills “tick-tick-tr’r’r’r’r’r’r’r.”

Booted Warbler

Booted Warbler

Iduna caligata

Small, recalling a beige chiffchaff or other Phylloscopus warbler. Rather nondescript: gray brown above, paler below, with a short, dark-tipped bill and conspicuous pale eyebrow. Pot-bellied with short wings and a square-tipped tail. Can be extremely difficult to identify; compare carefully with small Acrocephalus warblers and other Iduna warblers, especially Sykes’s Warbler. Found in low bushes in steppes and meadows; also bushy areas in migration and in winter. Usually forages low down, and occasionally on the ground. Song starts out with a few dry chitters, then launches into a rapidfire burst of high-pitched chattering that almost stumbles over itself. Also gives dry “tchak” and rattle calls.

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