Radde's Warbler
Phylloscopus schwarzi
Small, chunky songbird. Brown overall with a pale throat, thick pinkish bill, and a black-bordered white supercilium that is buff-tinged in front. The smaller Dusky Warbler has brownish tinge toward the back of the brow. The similar Yellow-streaked Warbler is a grayer shade of brown, has a clean white supercilium, and has different vocalizations. Favors open taiga forest and forest edge for breeding, often in wet brushy thickets or along streams. Sings from both exposed and hidden perches, giving a ringing trill with several variations. Difficult to detect on the wintering grounds, where it skulks in dense vegetation in both wet and dry areas; listen for its frequently repeated “chuk” and “pit” calls.
Identification
This is a warbler similar in size to a willow warbler. The adult has an unstreaked brown back and buff underparts. There is a very long prominent whitish supercilium, and the pointed bill is thicker than that of the similar dusky warbler. The legs are paler than dusky's, and the feet look large, reflecting the more terrestrial lifestyle of this warbler. The sexes are identical, as with most warblers, but young birds are yellower below. The call is a soft chick.
Taxonomy
Genus: Phylloscopus; Family: Phylloscopidae; Order: Passeriformes.
- Scientific name
- Phylloscopus schwarzi
- Authority
- (Radde, 1863)
- Order
- Passeriformes
- Family
- Phylloscopidae
- Genus
- Phylloscopus
Range and habitat
Radde's warbler breeds in southern parts of Central and Eastern Siberia as far east as Korea and Manchuria. It is a migratory species and spends the winter in Bangladesh, Cambodia, Laos, Myanmar and Thailand. In its breeding range, Radde's warbler is found in open deciduous woodlands with some undergrowth and bushy woodland margins, often near water. In its winter quarters it occupies the fringes of forests, thick scrub and bushy places near woodland. Like most Old World warblers, this small passerine bird is insectivorous.
- Breeding range
- PAL : e Kazakhstan and s Russia to se Russia and North Korea
- Non-breeding range
- se Asia
- Migration
- Complete migrants
Behavior
Migration pattern: Complete migrants.
Conservation
Population trend: stable.
- Population trend
- stable
Photos
Distribution
Bird Calls
Other Birds
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Small, handsome tanager with piercing yellow eyes. Males are mostly cobalt-blue with a white belly and a black mask. Note the black feathers on the back and the blue-edged wings. Females are greenish-olive. Rare; found in the canopy and edges of humid forest on poor-quality soils, where it forages acrobatically and sometimes accompanies mixed-species tanager flocks. The similar male of the more common Black-faced Dacnis has darker blue plumage and a black mask that extends to the nape, while females are browner above and paler below.
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Large scoter, with distinctive white patch on wing. Dark chocolate-brown overall; males are darker than females and have small white mark under eye, dark knob on the bill, and pink bill tip. Females have two rounded white patches on face. At a distance, separated from Surf Scoter by more sloping head shape and white in the wing. Winters on coastal waters and large freshwater lakes. Occasionally found on large inland lakes during migration. Dives frequently, feeding on mollusks and crustaceans.
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