Pallas's Grasshopper Warbler
Helopsaltes certhiola
Furtive streaky brown warbler; typically buries itself deep in tangled vegetation and is very difficult to see. If seen well, note well-streaked upperparts, long wedge-shaped tail, and rufous rump. Only other well-streaked Locustella warbler in range is the smaller Lanceolated, which has a shorter tail and more extensive streaking on the underparts. Favors wet habitats; breeds in boggy taiga and vegetated riverbanks, winters in reedbeds and marshy fields. Clattering song reminiscent of reed warblers. Call a sharp “tik”; also gives a rapid-fire dry rattle.
识别特征
This is a medium-sized warbler. The adult has a streaked brown back, whitish grey underparts, unstreaked except on the undertail. The sexes are identical, as with most warblers, but young birds are yellower below. Like most warblers, it is insectivorous. It is very similar to the common grasshopper warbler, but is slightly larger, has white tips to the tail and tertial feathers, and a warmer brown rump. The white tips are the reason for its colloquial, mnemonic name of "PG Tips".<p>This is a skulking species which is very difficult to see except sometimes when singing. It creeps through grass and low foliage.
分类信息
- 学名
- Helopsaltes certhiola
- 命名信息
- (Pallas, 1811)
- 目
- Passeriformes
- 科
- Locustellidae
- 属
- Helopsaltes
分布与栖息地
This small passerine bird is found in tall grass with some thicker vegetation, usually close to water in bogs or wet meadows. From 4 to 7 eggs are laid in a nest on the ground in grass. This species is a very rare vagrant to western Europe. One of the best places to see this skulking species as a vagrant is Fair Isle, Shetland; for a species that only rarely appears in western Europe, it can be found there with some regularity.
- 繁殖区
- PAL : e
- 非繁殖区
- OR
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Baer's Pochard
Aythya baeri
Extremely rare diving duck. Breeding male has a dark green gloss to the head, but often seems dark-headed in poor lighting. Non-breeding males are duller, but have pale eyes. Females and immatures have dark brown heads and dark eyes. Boldly patterned chestnut-and-white sides unique among ducks; compare the brown sides of Ferruginous Duck and pale sides of Common Pochards, both similar species. Can be difficult to separate from Ferruginous Duck, with which it sometimes hybridizes; note less extensive white wing panels in present species. During the colder months, often found singly or in small groups within non-breeding flocks of more common duck species. Breeds on sheltered, well-vegetated lakes; prefers large open bodies of water in the winter.
Gray Ground-Thrush
Geokichla princei
An enigmatic thrush of lowland primary and secondary forests, often in areas with lots of cover near water. Gray-brown overall with distinctive double white wingbars and double black bars in the ear patch. Similar to the equally unknown Black-eared Ground-Thrush, but note Gray Ground-Thrush’s plain gray-brown appearance and brighter white wingbars. Song is unknown, but reported to give a sharp, sibilant call.
Giant Wren
Campylorhynchus chiapensis
Very large wren restricted to coastal plain of Chiapas and adjacent Guatemala. Favors open and semiopen areas with hedges, scattered large trees, stone walls, and thickets; often in and around villages and in gardens of small farms. Forages from the ground to the canopy of palm trees, mainly at low to middle levels. Occurs alongside somewhat smaller, but rather similar rufous-backed form of Rufous-naped Wren. Note Giant’s plain rufous back and wings and rufous tail (Rufous-naped Wren has boldly barred wings andblackish tail). Despite large size, can be elusive, like all wrens.
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