Scaly-breasted Wren
Microcerculus marginatus
Dark, short-tailed wren, quite shy and difficult to see. Overall brown with paler grayish throat and rather long, straight bill. Some populations have more scaling on breast than others. Found on the ground inside forest, where it makes an interesting song. Listen for a series of whistled notes, starting off high-pitched with a few in rapid succession, then each note dropping in pitch and spaced further and further apart. The whole series can last for minutes. Far more often heard than seen.
识别特征
The southern nightingale-wren is 11 cm (4.3 in) long; males weigh 18.2 to 22 g (0.64 to 0.78 oz) and females 17 to 18 g (0.60 to 0.63 oz). Adults of the nominate subspecies have a dull gray-brown face and deep chocolate-brown crown and upperparts with a reddish tinge on the rump. They have a very short dark chocolate tail. Their chin, chest, and upper belly are white with some black scalloping on the sides of the chest. The lower flanks and lower belly are dark chocolate. The juvenile is similar with the addition of darkish barring on the crown and back and dark brown feather tips on the underside.<p>M. m. squamulatus is similar to the nominate but has scaly markings on the underparts. M. m. taeniatus also has scaly underparts and a more extensive reddish tinge on the upperparts and blackish barring below. M. m. corrasus is also similar to the nominate, but is a purer white below with narrow dark bars. M. m. occidentalis has a longer and thinner bill, darker upperparts and flanks, and broad dark bars on its abdomen. M. m. luscinia's throat is pale gray that becomes brownish gray on the breast and belly.
分类信息
The southern nightingale-wren forms a species pair with the northern nightingale-wren (Microcerculus philomela) and was in the past considered conspecific with it. It is currently treated as a species in its own right by the International Ornithological Committee (IOC) and the Clements taxonomy, though under different English names.<p>The southern nightingale-wren has the six subspecies listed below. Subspecies M. m. luscinia is treated by some taxonomists as a separate species. The nominate subspecies M. m. marginatus is also sometimes considered a separate species or even two species divided by the Amazon River.<p>The southern nightingale-wren's subspecies are:
- 学名
- Microcerculus marginatus
- 命名信息
- (Sclater, PL, 1855)
- 目
- Passeriformes
- 科
- Troglodytidae
- 属
- Microcerculus
分布与栖息地
The subspecies of southern nightingale-wren are found thus:<p>The southern nightingale-wren inhabits the lower levels of dense humid tropical forest. It has been recorded from sea level to 1,700 m (5,600 ft) in Costa Rica, to 1,400 m (4,600 ft) in Colombia, and to 1,800 m (5,900 ft) in Venezuela. There is also one record in Panama at 3,100 m (10,200 ft).
- 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
Nile Valley Sunbird
Hedydipna metallica
Tiny sunbird with a relatively short bill. Male is unmistakable with a glossy green head, throat and back, a bright yellow belly, and extremely long thin tail. Females are yellowish below with a short tail and a whitish throat. Breeds in gardens, plantations, oases, and acacia scrub. Vocalizations similar to Palestine Sunbird, but both calls and song have a buzzing quality.
Short-tailed Akalat
Sheppardia poensis
Small, fairly plain, brown-and-orange robin-like bird. The tail is uniformly rufous-brown and the face is mostly orange, with a blackish or olive-brown cap. Found in the understory of forest at middle and high elevations. Shy and inconspicuous. The song is a quiet series of several mournful low-pitched whistles. Very similar to Lowland Akalat, but has orange extending further onto the face, more white on the belly, and is found at higher elevations. Also similar to White-bellied and Gray-winged Robin-Chats, but separated from the former by uniform tail, and from the latter by the lack of a strong white eyebrow.
North Island Robin
Petroica longipes
A small charcoal-colored songbird endemic to New Zealand. Confined to central North Island and a few offshore predator-free islands. Favors mature native and exotic forest stands. Male is almost all black with a white spot above the bill. Female and juvenile grayer, with lighter patches on breast and throat. Can be incredibly confiding and curious about humans. It is possible to bring individuals out into the open by disturbing leaf litter and then sitting quietly. Actively flushes out prey with foot trembling and by flicking its wings and tail. Male song is a loud and simple phrase of notes including “pwee-pwee-pwee.”
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。