Banded Bay Cuckoo
Cacomantis sonneratii
Slender brown cuckoo with extensive fine barring and pale face and underparts. Found in lowland and foothill forests, where, like many cuckoos, it can often be inconspicuous in dense foliage. Listen for its two distinct songs, a high rising “smoke-yer-pep-per!” and a series of rising whistles.
识别特征
The adults are bright rufous or bay on the head and back and are broadly barred with dark brown. The bill is long and slightly curved. A whitish supercilium is distinctive above a dark eye-line. The wing is darker and tail is graduated with a dark brown centre. The tail has a subterminal black band and white tips to the feathers. The sexes are alike. The iris is yellow and the bill is black while the base of the lower mandible is greenish grey. The tarsi are grey. The juvenile is similar but has a pale lower mandible and white fringes to the feathers of the upper body.<p>The overall length is about 22 cm making it about the same size as the syntopic Cacomantis merulinus and Cacomantis variolosus. The hepatic forms of those can be similar but supercilium, long beak and barred tail distinguish this species.
分类信息
The species was originally classed in the genus Cuculus by John Latham. The type specimen came from Northeastern India. The species epithet is after the French naturalist and explorer Pierre Sonnerat.<p>Four subspecies are generally recognized:<p>Some sources also recognize malayanus (Chasen & Kloss, 1931) from Peninsular Malaysia and schlegeli (Junge, 1948) from Sumatra, Borneo and Palawan (SW Philippines).
- 学名
- Cacomantis sonneratii
- 命名信息
- (Latham, 1790)
- 目
- Cuculiformes
- 科
- Cuculidae
- 属
- Cacomantis
分布与栖息地
- 迁徙
- Complete migrants
行为
Like many other cuckoos, they are brood-parasitic and hosts recorded include the common iora, red-whiskered bulbul, white-bellied erpornis, scarlet minivet, bulbuls and small babblers (Stachyris spp.). The eggs resemble those of the hosts. The incubation and nesting are not well documented. Fledglings of the host are evicted.<p>Populations are often migratory or partially migratory. In India, they are found mainly during the monsoons.<p>They are found in well-wooded forests, mainly in hill areas. Insects are their primary diet. They capture insects by gleaning as well as by aerial sallying.<p>The breeding season varies widely from region to region. Near Bombay they are known to lay eggs from February to August, Assam from April to August while they seem to sing through much of the year in the Eastern Ghats. In Sri Lanka, young have been seen in June and October while adults sing from January to May in the Malay Peninsula.<p>The call of this species is distinctive. It is high-pitched four note whistle that has been transcribed as "wee-ti wee-tee" or "smoke-yer-pepper". The frequency starts at 2.4 kHz and each note falls in pitch with the strophe lasting a second.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Kauai Elepaio
Chasiempis sclateri
A small flycatcher of forested habitats on Kauai. Adults have a gray back and white wingbars, while immatures are reddish brown with buffy wingbars. Common in native forest at higher elevations. Bold and curious; not afraid of people and may follow hikers. Often holds tail cocked up at an angle. Male song consists of two notes that rise and fall and have a squeaky, rubber ducky quality. Both sexes give a variety of soft calls and scolding notes. Responds to pishing and squeaking.
Souza's Shrike
Lanius souzae
Small, slim shrike with a brown wing and tail. Note the white slash across the shoulders. Males are gray below and females buffy. Found in broadleaf woodland of miombo, mopane, and Zambezi teak. Uncommon and very localized species. Perches high in trees, but rarely on the conspicuous open perches used by most shrikes. Often in pairs. The vocalizations include an annoyed-sounding “sveeat” and low rasps. Most similar to female Red-backed Shrike, but separated by the white mark across the shoulders and lack of barring on the underparts.
Marquesan Ground Dove
Pampusana rubescens
A rotund, short-legged ground-dwelling dove that usually runs rather than flies when startled. Slate-gray belly contrasts with paler gray chest and head, and with purplish shoulders and back. No similar species occur in its range. Apparently rarely vocal, but has been heard giving a snarling sound.
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