White-tailed Trogon
Trogon chionurus
This yellow-bellied trogon is fairly common from Panama to western Ecuador. Males have a dark head and breast with deep indigo iridescence, an iridescent turquoise or purplish back, and a plain white undertail. Females are grayer on the head and breast with a barred undertail that has large white tips on the tail feathers. Note the pale blue eyering. Compare with Gartered Trogon, which has a yellow eyering and different undertail pattern (barred with white tips on males, more black on females). Found singly or in pairs in forests, edges, and gardens up to around 1,000 m. Listen for accelerating series of “pow” notes and purring calls.
识别特征
This relatively large trogon is 28 to 30 centimetres (11 to 12 in) long. As most trogons, it is strongly sexually dimorphic. In the male the head and upper breast are dark blue (appears blackish in poor light), and the back is green, becoming bluer on the rump. The lower underparts are orange-yellow. The wings are black, vermiculated with white. The undertail is almost entirely white with only a very narrow black base to each feather. The complete eye-ring is pale bluish. The female white-tailed trogon resembles the male, but has a grey back, head and breast, and rather indistinct black-and-white barring mainly to the inner webs of each tail feather (less on outer webs).<p>For comparison, the similar but smaller gartered trogon (T. caligatus) has a yellow (male) or incomplete white eye-ring (female), and the male also has bared to the undertail.<p>There is no overlap in the distribution of the white-tailed and green-backed trogons, but the two can be separated by the undertail pattern: Unlike the white-tailed trogon, the male green-backed trogon has a broad black base to each feather, and the female has relatively distinct black-and-white barring mainly to the outer webs of each feather. The male white-tailed trogon also has a bluer rump than the green-backed trogon.<p>The song of the white-tailed trogon consists of 15-20 very fast cow notes.
分类信息
- 学名
- Trogon chionurus
- 命名信息
- Sclater, PL & Salvin, 1871
- 目
- Trogoniformes
- 科
- Trogonidae
- 属
- Trogon
分布与栖息地
- 迁徙
- Resident species
行为
They typically perch upright and motionless. Although their flight is fast, they are reluctant to fly any distance. Their broad bills and weak legs reflect their diet and arboreal habits. White-tailed trogons feed mainly on small fruit, supplemented by arthropods – slightly more so in the dry season when fruit is scarce.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Common Jery
Neomixis tenella
Small, energetic, sharp-billed warbler. Always shows gray on the back of the neck and usually a lightly striped throat, though there is regional variation. Madagascar endemic that is found in all habitats with some woody vegetation, including forest, scrub, savanna, plantations, and villages. Often joins flocks with other small bird species. Song is a squeaky, bouncing series of high notes. Gray on the back of the neck separates it from all other jeries. Larger and brighter than Green Jery. Smaller than Stripe-throated Jery, with pale legs.
Antarctic Petrel
Thalassoica antarctica
Striking brown-and-white petrel of Antarctica and its adjacent seas and islands. Essentially unmistakable, but worth comparing with Cape Petrel if seen at great distance. Breeds on rocky slopes and cliff faces, both coastal and inland; one of very few flying birds likely to be seen any distance inland in Antarctica. When not breeding, disperses north, sometimes getting as far as the Falklands. Often seen in huge numbers around foraging cetaceans or fishing vessels.
White-striped Forest Rail
Rallicula leucospila
A medium-sized rail of mid-mountane forest on New Guinea’s Bird’s Head. Chestnut body, dark wings and back with white markings on. Very quick moving and difficult to see. Co-occurs with the similar Chestnut Forest Rail but the White-striped Forest Rail is slightly larger with barred rear flanks, the male has white streaks rather than a plain back, and female has a slightly bared tail and is spotted to the back of the neck. Voice, an incessant quacking.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。