Yellow-rumped Warbler
Setophaga coronata
One of the most common and widespread warblers; often the core member of mixed warbler flocks during migration, especially early in spring and late in fall. Two main populations: “Audubon’s” breeds mainly in the mountains of the western U.S. and into British Columbia; “Myrtle” breeds from the eastern U.S. across Canada to Alaska. All plumages show a bright yellow rump and yellow on the sides. Most “Audubon’s” have a yellow throat, but dull immature females can be off-white. “Myrtle” Warblers have a white throat that wraps around below the cheek. Both subspecies breed in coniferous or mixed forests, often near clearings or edges. In migration and winter, found in any woodland or open shrubby area, including coastal dunes, fields, parks, and residential areas. Often sallies out from a conspicuous perch to snatch insects. Also eats berries in the winter. Calls frequently: a flat “check” (Myrtle) or rising “chit” (Audubon’s). Another distinctive sedentary population, surely a separate species, occurs very locally in the highlands of Guatemala: Goldman’s Warbler. Males are strikingly black overall, and show a mostly yellow throat with white corners.
分类信息
- 学名
- Setophaga coronata
- 目
- Passeriformes
- 科
- Parulidae
- 属
- Setophaga
照片
分布
鸟叫声
其他鸟类
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Malurus pulcherrimus
Small bird with a very long blue-gray tail held cocked, found from southwestern Western Australia to the Eyre Peninsula of South Australia, where it prefers coastal heath and drier woodland areas. Breeding male has a bright blue helmet, bluish-black breast, blue patch on back, and chestnut shoulders. Female grayish overall, with long blue-gray tail and reddish bill. Nonbreeding male resembles female but has black bill and narrow pale eyering.
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Small, mostly terrestrial finch-like tanager of dry intermontane valleys from central Bolivia to NW Argentina. Plain gray plumage and erect crest distinctive. Prefers open thorn scrub, especially mixed with cacti. Juvenile similar to juvenile and female Black-crested Finch, but supercilium much narrower.
Point-tailed Palmcreeper
Berlepschia rikeri
A strikingly-patterned medium-sized bird of palm swamps. Bright rufous upperparts and tail contrast with black-and-white streaked head and underparts. Found only in Moriche palm stands at rainforest edge or in swampy savanna regions. Usually in pairs that masterfully evade detection by slinking through the leaves and bases of palm fronds, which are probed for insect prey. Does not join mixed-species flocks. Best detected by voice: distinctive song is a rapid series of piping whistles, dropping slightly in pitch at end. Plumage pattern is similar to many woodcreepers, but none have such bold streaking, and most are unlikely to be found in Moriche palm stands.
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