Sulphur-winged Parakeet
Pyrrhura hoffmanni
Medium-sized parakeet with long pointed tail. Most distinctive in flight, when the wings look mostly bright yellow. When perched, look for the isolated red cheek patch, which is unlike any other parakeet in range. Sexes similar. Found in small flocks, usually in forested areas or edges. Calls are high-pitched and squeaky.
识别特征
The sulphur-winged parakeet is about 23 to 24 cm (9.1 to 9.4 in) long and weighs an average of 82 g (2.9 oz). The sexes are the same. Adults of the nominate subspecies are mostly green. Their head, nape, and throat have some yellow inclusions; bare white skin surrounds their eye and their ear coverts are bright terracotta. Their breast has a dull orange wash. Their wing is mostly green with yellow primary coverts, inner primaries, and outer secondaries; the outer primaries are blue. Their tail's upperside is rufous olive with green fringes on the feathers; its underside is reddish brown. Immature birds have duller scaling, less orange on their breast, and much less yellow on their wings. Subspecies P. h. gaudens has some orange-red markings on its head and its underparts are slightly darker than those of the nominate.
分类信息
The sulphur-winged parakeet has two subspecies, the nominate P. h. hoffmanni (Cabanis, 1861) and P. h. gaudens (Bangs, 1906).<p>It is named for the German naturalist Karl Hoffmann.[citation needed]
- 学名
- Pyrrhura hoffmanni
- 命名信息
- (Cabanis, 1861)
- 目
- Psittaciformes
- 科
- Psittacidae
- 属
- Pyrrhura
分布与栖息地
The nominate subspecies of the sulphur-winged parakeet is found in the Cordillera de Talamanca and the Dota region of southern Costa Rica. P. h. gaudens is found in western Panama as far east as Veraguas Province. The species inhabits primary and logged montane forest and adjacent shrubby areas and secondary forest. In elevation it ranges from 700 to 3,000 m (2,300 to 9,800 ft) but usually occurs above 1,600 m (5,200 ft).
- 迁徙
- Resident species
行为
The sulphur-winged parakeet moves from the upper elevations to the lower during the wet season, and sometimes makes daily elevational moves between roosting and feeding sites.<p>The sulphur-winged parakeet typically forages in small flocks in the forest canopy. Its diet is primarily the fruits and seeds of a variety of plants and trees.<p>The sulphur-winged parakeet is believed to nest mainly between January and June. It nests in a natural tree cavity or old woodpecker hole, typically between 8 and 20 m (25 and 65 ft) above the ground. In captivity the clutch size is six eggs, the incubation period 24 days, and fledging 10 weeks after hatch.<p>The sulphur-winged parakeet's most common call is "a series of high-pitched shrill notes, e.g. “krree krree krree” " that is given both from a perch and in flight. It is shrill but not screechy in contrast to that of other Pyrrhura parakeets. Perched birds are often silent. Flocks in flight "call frequently and simultaneously, producing a noisy, harsh and piercing chattering."
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
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Alauda razae
Found only on Raso Island of the Cape Verdes. Overall grayish-brown and moderately streaked including the breast. Note the large and heavy bill. Sometimes erects small crest. Belongs to the same genus as Eurasian Skylark, but is smaller with shorter wings and tail than Eurasian Skylark. Found along dry riverbeds on flat plains. Song is similar to that of Crested Lark. Call a short rattle, "Chureep."
Principe White-eye
Zosterops ficedulinus
A small, active, mostly dull olive-green and gray warbler-like bird with a white eye-ring that is obvious with a good view. An uncommon resident in the forest canopy of interior Príncipe, where small groups join mixed-species flocks. A dry, reedy chittering contact call is often the first sign of their presence. Principe White-eye may join the same flocks as Principe Speirops, which is slightly larger and has a much whiter head.
Long-billed Thrasher
Toxostoma longirostre
A fairly large and long-tailed thrasher with limited range in south Texas and northeast Mexico. Note dark reddish-brown upperparts, contrasting gray face, and heavily streaked underparts. Usually skulky and difficult to see in shrubby woodlands. Listen for its loud song, a long series of jumbled phrases. Most similar to Brown Thrasher, but almost no range overlap. Long-billed Thrasher is duller brown above and has a more contrasting gray face.
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