Brown-chested Martin
Progne tapera
Large swallow with distinctive brown band across chest. Chest band is typically sharply demarcated, but can look diffuse with some spotting down the center of the belly. Otherwise brown above and pale below. Similar in plumage to Bank Swallow but larger and lankier. Found in the lowlands, usually in open areas near water, either singly or in loose flocks.
识别特征
The brown-chested martin (Progne tapera) is a species of passerine bird in the family Hirundinidae, the swallows and martins. It is found regularly in Panama and every mainland South American country except Chile. It has been documented as a vagrant in Aruba and Chile and there are unconfirmed reports from the Falkland Islands. It is a casual visitor to Costa Rica and has been recorded in Florida, Massachusetts, and New Jersey.
分类信息
Genus: Progne; Family: Hirundinidae; Order: Passeriformes.
- 学名
- Progne tapera
- 命名信息
- (Linnaeus, 1766)
- 目
- Passeriformes
- 科
- Hirundinidae
- 属
- Progne
分布与栖息地
- 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

Pallas's Sandgrouse
Syrrhaptes paradoxus
An unusual bird of dry plains and grasslands that looks like a cross between a dove and a grouse. Both sexes have a long, needle-thin tail, a rectangular black belly patch, and overall sandy-brown plumage. The male sports an orange-and-gray face and a pink tinge to his wings and back. The female is browner, with heavy speckling on the neck and nape. Flies in flocks, often gathering in groups of up to thousands strong at reliable waterholes.

Bornean Whistling-Thrush
Myophonus borneensis
Dark thrush-like bird of rocky streams and gullies in mountains and foothills. Male shows faint blue gloss in good lighting, while female is entirely dark brown. Frequently fans tail while perched. Can be quite tame, and often perches up on manmade structures such as fence posts and streamside stairways. Gives high whistled calls, including a shrill screeching “shreeee” and a more mellow whistled note.

Pale-billed Scrubwren
Aethomyias spilodera
A small bird of foothill forest understory and midstory. Dark brown upperparts, paler underparts and characteristic pale bill. Races differ. Some with spotted throat and whitish or buffy underparts. Searches actively for insects in small groups or mixed flocks, often flicking its tail. Co-occurs at elevations with other scrubwrens, including Gray-green and Perplexing, but Pale-billed has an obvious pale bill. Song, an up-and-down “see-saw” repeated. Call, a scratchy chattering.
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