Grayish Piculet
Picumnus granadensis
Tiny woodpecker somewhat reminiscent of a nuthatch. Short, chisel-like bill and short tail. Plain grayish-brown above and slightly paler below with no streaking; note dark crown with small white spotting. Found in a variety of forested habitats, even around edges and second growth. Creeps around small branches and vines, often hanging upside-down. Sexes similar; males have patch of yellow spots on crown (not just white). Restricted to western Colombia.
识别特征
The greyish piculet is 9 to 10 cm (3.5 to 3.9 in) long and weighs 12 to 13 g (0.42 to 0.46 oz). Adult males of the nominate subspecies have a black crown and nape with small yellow tips on the feathers of the front and top and white spots on the rest. Their ear coverts are chestnut brown with a few white streaks, their cheeks off-white with blackish feather tips, and the sides of their neck gray-brown with white spots or streaks. Their hindneck and upperparts are grayish brown, often with an olive tinge. Their flight feathers are dark brown with yellowish green edges. Their tail is dark brown; the innermost pair of feathers have white inner webs and the outer two pairs a white stripe. Their chin and throat are off-white with blackish feather tips. Their underparts are dull white; the flanks sometimes have fine grayish streaks. Their iris is brown, the beak black, the bare skin around the eye gray-blue, and the legs gray with a green or blue tinge. Adult females are identical but with white spots on the whole crown and no yellow. Juveniles are duller and darker than adults and have more heavily streaked underparts. Subspecies P. g. antioquensis has grayer upperparts and more obvious gray streaking on their belly and flanks than the nominate.
分类信息
The greyish piculet has two described subspecies, the nominate P. g. granadensis and P. g. antioquensis (Chapman, 1915). The greyish piculet and the olivaceous piculet (P. olivaceus) were at one time considered to be conspecific and are now treated as sister species. However, the "evidence for treatment as separate species is weak".
- 学名
- Picumnus granadensis
- 命名信息
- Lafresnaye, 1847
- 目
- Piciformes
- 科
- Picidae
- 属
- Picumnus
分布与栖息地
Subspecies P. g. antioquensis of the greyish piculet is the more northern. It is found in northwestern Colombia on the western slope of the Western Andes between Antioquia Department and the upper reaches of the Rio San Juan. The nominate is found in western Colombia from the middle and upper reaches of the Rio Cauca south to the upper Rio Patía. It inhabits semi-open landscapes like the edges of dry to somewhat humid primary and secondary forest, scrublands, and open woodlands. In elevation it mostly ranges between 800 and 2,100 m (2,600 and 6,900 ft) though it might be found as low as 600 m (2,000 ft) in the northern part of its range.
- 迁徙
- Resident species
行为
The greyish piculet is a year-round resident throughout its range.<p>No details are known about the greyish piculet's foraging technique or diet, though they are assumed to be similar to those of the olivaceous piculet, which see here.<p>The greyish piculet's breeding season appears to span approximately January to June. Nothing else is known about its breediing biology.<p>The greyish piculet "[c]alls infrequently, a high-pitched weak trill on one pitch."
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Honeyguide Greenbul
Baeopogon indicator
Unusual dark greenbul with upright posture that does strongly resemble a honeyguide. Males have a white eye and females a dark one. Both sexes show a large white patch in the outer tail. Found in the upper portions of lowland forest. Usually in pairs or small groups. Most often detected by call: a slow series of mewing whistles. Similar to Sjöstedt's Greenbul, but has darker gray underparts, and male further distinguished by its pale eye. Distinguished from honeyguides by its different shape, especially the longer tail. Flight is direct, unlike undulating flight of a honeyguide.
Amazilia Hummingbird
Amazilis amazilia
A green-and-chestnut hummingbird with plumage that varies throughout its range. All variants have a red bill with a black tip. In most of its range, it has a green throat, white breast, and chestnut belly and tail. In the southern part of its range, white breast is reduced or absent and throat is blue or blue-green. At its northern limit, tail is mostly green. In the Andes of southern Ecuador, underparts are mostly white with only a little chestnut. Common in dry forest and scrub, and less prevalent or absent in more humid areas.
Melodious Warbler
Hippolais polyglotta
Medium-sized warbler, light olive-brown above and yellowish below with a rather long bill. Compared to Icterine Warbler, wings are shorter and lack the pale panel. Song is fast and prolonged, containing quite a lot of mimicry and usually some House Sparrow-like chattery calls intermixed. Breeds in southwest Europe and northern Morocco, in forests, scrubbier vegetation, orchards, and well-wooded gardens. Winters in various wooded habitats in tropical Africa, including wooded savanna.
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