Andean Siskin
Spinus spinescens
This yellowish finch is found in the Andes from Venezuela to Ecuador. It is duller yellow than many other siskins. Look for the male’s black cap and bright yellow wing patch. Females looks similar to males in the southern population; females in northern population lack black cap. Usually found in small flocks at forest edge, scrubby habitats, and paramo. Occurs from 1,800-3,700m. Can form mixed flocks with Hooded Siskins.
识别特征
This is a small green-and-yellow finch. According to some sources, it is the smallest species of finch on average, although others give this title to the lesser goldfinch. The total length can range from 9.5 to 11 cm (3.7 to 4.3 in). A weight of 11.5 g (0.41 oz) may be at the high end. Few standard measurements are known, although the bill has been recorded at 1.1 cm (0.43 in) and the wing chord length is reportedly around 6.4 cm (2.5 in). The Andean siskin has deep green upperparts with black and yellow coloration on the wings and tail. The adult male has a distinctive black cap. The female lacks this cap and is generally a duller olive color, with white from the belly to the undertail-coverts. The female differs from female yellow-bellied siskins in being paler and brighter, and by lacking the olive throat and yellow undertail-coverts of that species. Female hooded siskins are also similar, but the Andean has distinctive white undertail-coverts and more olive-green rather than gray overall coloration. The subspecies S. s. nigricauda is generally duller or darker green on upperparts than the nominate, and its underparts are dull green without any trace of yellow. The tail is all black, and the wings lack greenish-yellow tips to the coverts but retain bright yellow bases to the inner primaries and secondaries. The proposed subspecies S. s. capitaneus from the Sierra Nevada de Santa Marta is typically included in the nominate.<p>The Andean siskin's call is a typical goldfinch-like tswee or similar variation, frequently given in flight. The song, also goldfinch-like, is a lively rambling series of notes, high pitched and interspersed with rolling trills.
分类信息
- 学名
- Spinus spinescens
- 命名信息
- (Bonaparte, 1850)
- 目
- Passeriformes
- 科
- Fringillidae
- 属
- Spinus
分布与栖息地
The nominate subspecies occurs in the coastal mountains of Aragua in northern Venezuela, the Andes of western Venezuela, in the Serranía del Perijá along the Colombia-Venezuela border and in the Sierra Nevada de Santa Marta of northern Colombia, and from the eastern Andes in Colombia south to Valle, Putumayo, Nariño and Pichincha Province in Ecuador. S. s. nigricauda occurs in the northern, central and western Andes of Colombia, from Antioquia south to Caldas and possibly to northern Tolima.
- 迁徙
- Resident species
行为
This species is common to locally common. It occurs in subtropical and páramo zones of the northern Andes. The Andean siskins is usually found between elevations of 1,800 and 3,700 m (5,900 and 12,100 ft), though occasionally ranges as low as 1,500 m (4,900 ft) in Colombia. It inhabits scrub or low bushes in open cloud or elfin forests or along the edges of forests. It may also be seen on open hillsides with scattered trees or bushes and occasionally range to edges of cultivation. Usually, the Andean siskin is found in pairs or small flocks of up to 20, occasionally mixed with other species of finch, such as hooded siskin in northern Ecuador. It often perches high in tops of trees, but generally feeds on or near the ground. This species feeds on a variety of plant seeds, with a particular fondness for Espeletia seeds and flowers.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Rock Pipit
Anthus petrosus
Plumage relatively dull and dark: grayish brown to grayish above with weak darker streaking; dingy whitish below with heavy and rather blurry dark streaking. Also note the dark legs (pink on smaller and buffier Meadow Pipit, which often occurs in coastal grassland adjacent to Rock Pipits). Song is a bland, repetitive, high-pitched series, often accelerating towards the end. Call a high, lisping, slightly harsh "ssiip", very similar to that of Water Pipit. Like other pipits, walks strongly and often pumps its tail a little. Found along rocky coasts; infrequent inland. Often seen on rocks and adjacent areas with short grass.
Sooty Owl
Tyto tenebricosa
Medium-sized dark-gray owl with prominent facial disc and white speckles through the plumage. This handsome species inhabits rainforest, wet eucalypt forest, and surrounding habitats. Its pale feet seem too large for its body. The northern subspecies is smaller and paler. Main calls include a high-pitched "falling-bomb" whistle and insect-like squeaks and trills.
Partridge Pigeon
Geophaps smithii
Medium-sized pigeon, usually seen on the ground in open woodland or along roadsides in northwestern Northern Territory and the northern Kimberley in Western Australia. Plain brown plumage, with white stripe along the edge of the breast. Distinctive facial markings, with comical red (Northern Territory) or yellow (Western Australia) facial skin. Takes flight with a loud clatter of wings. Compare Squatter Pigeon, Flock Bronzewing (with black-and-white facial markings), and both Chestnut-quilled and White-quilled Rock-Pigeons (with pale wing panels).
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