Black-billed Amazon
Amazona agilis
A chunky green inhabitant of wet forests; typically found in pairs or small flocks in or near the canopy. Note this species’ nearly all green plumage, black bill, black eye, and black eyering. The somewhat similar Yellow-billed Parrot is distinguished from Black-billed Parrot by its rose-colored throat, yellow bill, and pale eyering. When the two species are together, the larger size of the Yellow-billed is evident. The characteristics noted above also separate this species from other parrots that might have escaped from captivity. Calls include a harsh “mwah,” a scratchy “uh-lee,” and “uh-luh,” with the latter often given rapidly and while flying.
识别特征
This parrot is smaller than the yellow-billed amazon and measures between 10.5 and 11.5 inches (27 and 29 centimetres). In males, the bill is very dark grey, almost black, becoming paler towards the base. The cere is very dark grey, as is the skin around the eyes, and the iris is dark brown. This bird's plumage is predominantly green, paler and more yellowish on the underparts. The feathers of the neck are edged with dusky black. Ear-coverts are blackish and primary coverts are red. Primaries are violet-blue and black, secondaries are blue at the tips, becoming green towards the base. The tail is mostly green and lateral feathers are marked with red, while outer feathers are margined with blue. The feet are greyish-green. Females are similar to males but with some primary coverts green instead of red.<p>The black-billed amazon's call is bugling while in flight however, while perched it growls and rumbles. Often its calls tend to be sharp and screechy.
分类信息
In 1751 the English naturalist George Edwards included an illustration and a description of the black-billed amazon in the fourth volume of his A Natural History of Uncommon Birds. He used the English name "The little green parrot". Edwards based his hand-coloured etching on a live bird that he had bought from a dealer in London. He was uncertain of the origin but assumed that it had come from the West Indies. When in 1758 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the tenth edition, he placed the black-billed amazon with the other parrots in the genus Psittacus. Linnaeus included a brief description, coined the binomial name Psittacus agilis and cited Edwards' work. The black-billed amazon is now one of 33 parrots placed in the genus Amazona that was introduced by the French naturalist René Lesson in 1830. The genus name is a Latinized version of the name Amazone given to them in the 18th century by the Comte de Buffon, who believed they were native to Amazonian jungles. The specific epithet agilis is Latin meaning "nimble" or "active". The species is monotypic: no subspecies are recognised.
- 学名
- Amazona agilis
- 命名信息
- (Linnaeus, 1758)
- 目
- Psittaciformes
- 科
- Psittacidae
- 属
- Amazona
分布与栖息地
The black-billed amazon is endemic to Jamaica. They live in mountainous rainforest, usually limestone rainforest, feeding on fruit, seeds, and nuts, and will take cultivated fruit like mangos, papayas and cucumbers as well as wild fruits.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Stout-billed Cuckooshrike
Coracina caeruleogrisea
A large bird of forest interior from the lowlands to mid-mountains. Long tail, thick bill and an overall slate gray plumage with black wing edge and tail tip. Male has a black mark between the eye and bill. Similar to several gray-colored cuckooshrikes and cicadabirds but most of these have thinner bills. Boyer’s also has a stout bill, but Stout-billed is much larger. Voice, a loud, grating, nasal, 2-note “raaooo-raahhh!” with the first note falling and the second, rising then falling.
White-backed Vulture
Gyps africanus
A large, buff-brown vulture with pale underwing patches and a diagnostic pale rump patch that is best seen in flight. Prefers open savanna and plains, where it breeds in loose colonies in tall trees. It remains Africa’s commonest vulture but is declining rapidly as it is highly susceptible to poisoning. The similar Cape Griffon is larger and paler, with a pale honey-colored eye (visible at close range), and less contrast between the flight feathers and the reminder of the underwing in flight.
Violet-eared Waxbill
Granatina granatina
A stunning long-tailed waxbill with a red bill, mauve cheeks, and a blue rump. The underparts are vibrant chestnut in the male and cream-buff in the female. Pairs are resident in arid thorn savanna and drier woodlands, where they forage on the ground and lower layers of scrub, often in the company of other finches. The species can be secretive, flying quite a distance when flushed. The Black-faced Waxbill is dark like Violet-eared Waxbill, but it has a red rump, a dark mask, and barred wings. The Purple Grenadier lacks mauve cheeks, and its range does not overlap.
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