Green-tailed Goldenthroat
Polytmus theresiae
Medium-sized hummingbird of semi-open areas. Note entirely green plumage (including tail) and plain face with white spot behind eye. May be found in coastal savannas, savanna enclaves at lower elevations in the tepui region, and patches of dry scrub on rock formations in rainforest. Perches on low shrubs, often near temporary pools, preening and chasing other hummingbirds. Similar to Glittering-throated Emerald but lacks any white below and shows less contrast between face and throat. Frequently produced song is an excited, accelerating series of notes.
识别特征
The green-tailed goldenthroat is 8.9 to 9.9 cm (3.5 to 3.9 in) long and weighs 3.0 to 3.9 g (0.11 to 0.14 oz). Both sexes of both subspecies have a long slightly decurved pinkish and black bill. The male of the nominate subspecies is overall shining green. The tail is rounded and green, with all but the central pair of feathers having white at their base. The area around the eye is dusky gray with a white spot behind the eye. The female is smaller. Its throat and breast are whitish thickly spotted with green, and the outermost tail feathers have white tips. Juveniles are like the adult female but with buffy edges to the head's feathers. P. t. leucorrhous is essentially the same as the nominate but for having a white vent area and undertail coverts.
分类信息
The green-tailed goldenthroat was at one time placed in the monotypic genus Psilomycter, then in Smaragdites which had priority; the latter was later merged into Polytmus. The green-tailed goldenthroat has two subspecies, the nominate P. t. theresiae and P. t. leucorrhous.
- 学名
- Polytmus theresiae
- 命名信息
- (Da Silva Maia, 1843)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Polytmus
分布与栖息地
The nominate subspecies of green-tailed goldenthroat is found in the Guianas and north-central Brazil from the lower Negro and Madeira rivers east into the states of Pará and Amapá. P. t. leucorrhous is found from eastern Colombia and southern Venezuela into the upper Negro River area of Brazil, and separately in eastern Peru and northern Bolivia. In addition, the South American Classification Committee (SACC) of the American Ornithological Society lists it as hypothetical in Ecuador. The species inhabits the edges of sand-soil forest and sandy savanna with scattered small trees and stands of bushes. In elevation it generally ranges between 100 and 300 m (330 and 980 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
White-winged Apalis
Apalis chariessa
Spectacular, slender canopy warbler-like bird with a long and graduated white-tipped dark tail. Sexes look different: male has glossy-black upperparts and broad collar, yellow-orange belly, and distinctive white throat and wing panel. Female is duller, crown is gray and back is olive green, but distinctive wing patterning is consistent. Pairs are scarce and local residents in the canopy of low and mid-altitude forest, usually below 1600m. Sometimes joins mixed-species flocks. Calls a lively rollicking repeated up-and-down “tu-ree-du-lee”, for up to a minute at a time.
Red-fronted Antpecker
Parmoptila rubrifrons
A small, slender-billed warbler-like waxbill with pinkish-brown legs and different-looking sexes: the male has a red forehead, dull brown upperparts, light scaling on the face, and rusty-chestnut underparts, while the female has pale underparts with scattered dark chevrons, mostly brown upperparts, and a white-speckled head. Pairs and small groups forage alone or in mixed-species flocks, in the understory and middle levels of primary and swamp forest, often near water. Eats insects, with a fondness for ants. Call is a high-pitched downslurred “peeeee.”
Yellow-shouldered Amazon
Amazona barbadensis
Large green parrot of desert Caribbean areas, including mainland. All green with yellow face, yellow shoulder patch, and orange wing patch. Sexes similar. A threatened species, uncommon in areas where it’s trapped for the pet trade but locally common in safer areas. Usually in pairs or groups, often large flocks at roosts. Always in desert scrub areas searching for cactus and other fruits, seeds, and nectar-rich flowers. Voice a harsh scream similar to other Amazona parrots but somewhat higher pitched. Similar to Orange-winged Parrot, which lacks yellow shoulders and has a blue area above eyes.
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。