Gray-rumped Treeswift
Hemiprocne longipennis
Long-winged and long-tailed, this inhabitant of the forest canopy closely resembles a swift, but unlike true swifts, frequently perches upright for long periods of time. Dark gray above with a short, angular crest and dark orange cheek patches. Female is paler below than male. Long tail is sometimes opened in a deep fork when in flight, but appears long and thin when closed. Longer-winged and longer-necked silhouette than swifts in flight. Forages both aerially and by hawking from an exposed perch. Inhabits lowland and foothill forests, particularly wet forests. Gives series of squeaky calls.
识别特征
Adult males have a distinct dark grey throat and chest contrasting with a white belly. Ear coverts are dull orange red/chestnut colored. Adult females lack the dull orange-red/chestnut coloration on the ear coverts. When perched, the wing tips cross over across the tail. Both sexes have a greenish sheen to the upper parts.
分类信息
- 学名
- Hemiprocne longipennis
- 命名信息
- (Rafinesque, 1802)
- 目
- Apodiformes
- 科
- Hemiprocnidae
- 属
- Hemiprocne
分布与栖息地
It is found in Brunei, Indonesia, Malaysia, Myanmar, the Philippines, Singapore, and Thailand.Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, and subtropical or tropical moist montane forests
- 迁徙
- Resident species
行为
The birds occasionally catch insects in flight by sallying from perches. They build nests on tree branches. The half-saucer-shaped nest is made from hardened saliva interspersed with feathers, mosses, and/or flakes of tree bark. The single egg is reportedly attached to nest surface with saliva. Owing to the fragile nature of the nest, it is attached only on one side to the branch. Thus, the bird does not sit directly on the nest for incubation. Similarly, the parent birds reportedly brooded by perching on the branch above the nest and fluffing their breast feathers out to cover it.<p>Both sexes help incubate the egg. During the shifting of parental care, the partner perches near the incubating adult and carefully slides over the nest.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Purple Sandpiper
Calidris maritima
Plump, rock-loving shorebird with slightly droopy bill. Most often seen in nonbreeding plumage, which is fairly dark gray with spotted underparts. Namesake purple sheen (mostly on back, scapulars, and tertials) only visible at close distance in good light. Legs and base of bill usually bright orange. Messy-looking breeding plumage is darker and more heavily marked, with limited rusty tones on upperparts. Largely inaccessible breeding range on high Arctic tundra; most often seen in northern Europe, Spitsbergen, and Iceland. Winters at slightly lower latitudes, regularly south to the mid-Atlantic region in North America and the Iberian Peninsula in Europe; found in flocks on rocky coastlines and jetties pounded by heavy surf.
Pale Martin
Riparia diluta
Small dull swallow, brown above and white below, with a sharp brown chest band. Nearly identical to Bank Swallow, with which it breeds sympatrically and overlaps on migration, but look for a slightly less well-defined lower border to the cheek patch and a slightly paler, more diffuse breast band. Voice also differs subtly, Pale gives primarily series of dry notes with a more trilling quality than Bank Swallow’s. Similarly picky in its nesting locales, limited only to sandy hillsides and banks, often near a water source.
Strong-billed Woodcreeper
Xiphocolaptes promeropirhynchus
Very large woodcreeper of pine-oak and evergreen forest in highlands and foothills; also occurs locally in lowlands. Forages mainly at middle to upper levels on large trunks and branches, often at big bromeliads; frequently travels with mixed-species feeding flocks that include jays and orioles. Inconspicuous, despite its large size. Note very large size, long and very stout grayish bill, and fine pale streaks limited to the head and breast.
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