Cocos Tyrannulet
Nesotriccus ridgwayi
Small and drab flycatcher found only on Cocos Island, which is located in the Pacific Ocean about 300 miles southwest of mainland Costa Rica. Most birds are brown above with a buffy belly, with tan wingbars and a pale eyebrow. Some individuals have a brighter yellow belly or an olive-tinged back. Inhabits humid forest as well as scrubby and swampy areas, often in dense vegetation. Typical song is a short, descending sputter.
分类信息
- 学名
- Nesotriccus ridgwayi
- 命名信息
- Townsend, CH, 1895
- 目
- Passeriformes
- 科
- Tyrannidae
- 属
- Nesotriccus
分布与栖息地
It is endemic to Cocos Island off Costa Rica. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical swamps, subtropical or tropical moist montane forest, and subtropical or tropical moist shrubland.
- 迁徙
- Resident species
保护状况
It is thought to be threatened by introduced species, particularly rats and feral cats, which prey on the species, and pigs which destroy habitat through foraging. There is no evidence yet of a decline, but is listed as Vulnerable due to its tiny range.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类

Yellow-eyed Pigeon
Columba eversmanni
Nondescript brownish-gray pigeon with a bright yellow eye-ring. Wing pattern noticeably weaker than that of larger Hill Pigeons and wild-type Rock Doves. Favors open arid areas and mountain valleys, usually near a water source. Breeds in western Central Asia, with part of the population migrating south to western South Asia in the winter. Species has undergone significant decline in recent years and is now fairly uncommon in its range.

Guira Tanager
Hemithraupis guira
Small attractive tanager, widespread and fairly common in lowlands and foothills. Male unmistakable: mostly olive above with black mask bordered by yellow, orange breast and rump, and grayish flanks. Female mostly dull yellowish and potentially confusing, especially compared with female Yellow-backed Tanager. Note pale eyebrow and vague dark line through the eye, yellowish bill, and paler grayish flanks. Usually seen in pairs, often with a mixed-species flock. Forages actively in the canopy or middle levels of forests, edges, gardens, and second growth.

Red Shoveler
Spatula platalea
Distinctive dabbling duck: combination of very large, slightly shovel-shaped black bill and and pale blue forewing patches (brighter on male) identify all plumages. Male has a pale gray head with pale yellow eyes and a “red” body with black spots. Female is mottled brown overall, but note white sides to pointed tail, big black bill. Fairly common in wetlands and at lakes, river mouths, and sewage lagoons. Unlike many dabbling ducks, often rather quiet.
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