Thick-billed Warbler
Arundinax aedon
Bulbul-sized large warbler with a long tail, a stubby bill, and a plain face. Breeds in East Asia; winters in South and Southeast Asia. Structurally similar to Clamorous Reed Warbler but has a shorter, blunter bill, no eye-stripe or brow, different vocalizations, and no particular preference for water. Rather skulky, it keeps to dense grasses, forest edge, and shrubbery. Song is long and complex, consisting of short bursts of high piercing notes, harsh snappy chattering, and mellow warbles. Calls include a hard, fast, continuous arrhythmic “thk…thk, thk, thk” emanating but from the undergrowth.
识别特征
The thick-billed warbler (Arundinax aedon) breeds in the temperate east Palearctic, from south Siberia to west Mongolia. It is migratory, wintering in tropical South Asia and South-east Asia. It is a very rare vagrant to western Europe. This passerine bird is a species found in dense vegetation such as reeds, bushes and thick undergrowth. Five or six eggs are laid in a nest in a low tree. This is a large warbler, at 16–17.5 cm (6.3–6.9 in) long, which is nearly as big as the great reed warbler. The adult has an unstreaked brown back and buff underparts, with few obvious distinctive plumage features. The forehead is rounded, and the bill is short and pointed. The sexes are identical, as with most warblers, but young birds are richer buff below. Like most warblers, it is insectivorous, but will take other small prey items. The song is fast and loud, and similar to the marsh warbler, with much mimicry and typically acrocephaline whistles added. It was sometimes placed in the monotypic genus Phragmaticola (or Phragamaticola) and for a long time as Acrocephalus and in 2009 suggested as being within the Iduna clade. However, a 2014 phylogeny study based on more loci indicated that it did not fit into the Iduna clade, and therefore suggested a resurrection of the genus Phragamaticola or Arundinax; the latter, being the older available genus name, has priority. The genus Arundinax is from Latin arundo, arundinis meaning "reed" and Ancient Greek anax which means "master". The specific aedon is from Ancient Greek aedon and means nightingale. In Greek mythology, Queen Aëdon was changed into a nightingale after killing her own son Itylus while attempting to murder one of the sons of her sister-in-law Niobe.
分类信息
Genus: Arundinax; Family: Acrocephalidae; Order: Passeriformes.
- 学名
- Arundinax aedon
- 命名信息
- (Pallas, 1776)
- 目
- Passeriformes
- 科
- Acrocephalidae
- 属
- Arundinax
分布与栖息地
Breeding range: PAL : nc, ne. Non-breeding range: se Asia.
- 繁殖区
- PAL : nc, ne
- 非繁殖区
- se Asia
- 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
鸟叫声
其他鸟类
Moustached Turca
Pteroptochos megapodius
Fairly common; seen more readily than other large tapaculos. Like huet-huets, loud calls often draw attention. Found in matorral and other native scrub on hillsides and rocky slopes. Often perches on rocks or runs along roadsides, tail cocked strongly. Besides its large, “fat” size and shape, note big white “mustaches,” solidly brownish breast, and boldly barred belly. Compare with smaller and longer-tailed White-throated Tapaculo, which is often in the same areas.
Warsangli Linnet
Linaria johannis
A fine-billed finch with a notched tail. Neatly patterned mostly in gray and white, with black wings and tail and a rufous lower back and thighs. Male has a striking white eyebrow, lower cheek patch, wing notch, and rump. Female is duller, with a less striking facial pattern; juvenile is buffier and streakier. A rare resident in the hilly Daalo and Mash Caleed regions of northern Somalia, where it prefers degraded juniper forest and other woodland and scrub between 1200 and 2400 meters of elevation. Forages on the ground in pairs or small groups, and perches on exposed branches and dead trees. Sings a typical canary-like song with whistles, trills, and buzzes. Calls include a high-pitched “tsee-wit.” Streaky juvenile could be confused with a canary, but white in the wing is distinctive.
White-bellied Treepie
Dendrocitta leucogastra
A handsome long-tailed inhabitant of the Western Ghats. Black face and white underparts set this species apart from Rufous Treepie. White-bellied is typically found well away from human habitation in humid hill forests, where it inhabits both primary and secondary patches. Forages at upper and middle levels of forest, often with other species, particularly Greater Racket-tailed Drongos. Noisy, giving hooting, chattering, and grating calls.
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