Levaillant's Cuckoo

Clamator levaillantii

A large, dark-backed cuckoo with a floppy crest, white wing patches, and pale underparts; throat and lower flanks both heavily streaked. It is a brood parasite on babblers and other medium-sized birds. It calls a shrill “kreeeuu”, which is often followed by harsh chattering notes. Levaillant’s Cuckoo is similar to the smaller Pied Cuckoo, which lacks throat streaking and has a smaller crest. Dark morphs of both species are almost identical and can only reliably be told apart by size.

识别特征

The cuckoo is 37.5 cm (15 in) long, longer tailed than pied cuckoo, and with a more heavily streaked throat. There are two colour morphs. The light morph is black above, faintly glossed bluish or greenish. The throat streaking may extend on to the sides. The primaries and rectrix tips are white. The dark morph is black except for the white primary patch and white spots on the outer tail feathers (these are absent in dark pied cuckoo. The juvenile Levaillant's cuckoo is brown above, rufous on the wing-coverts and rectrix tips, with a buff forehead, face and underparts, and the throat more streaked. The call is a low ringing kuwu-weer, kuwu-weer... and an excited ku-wi-wi-wi.

分类信息

学名
Clamator levaillantii
命名信息
(Swainson, 1829)
Cuculiformes
Cuculidae
Clamator

分布与栖息地

迁徙
Complete migrants

行为

Levaillant's cuckoo is a brood parasite and the female lays her eggs in the nest of another species of bird, typically the southern pied babbler (Turdoides bicolor), the bare-cheeked babbler (Turdoides gymnogenys), the Hartlaub's babbler (Turdoides hartlaubii) or the arrow-marked babbler (Turdoides jardineii). Both the male and female cuckoo fly around acrobatically to distract the host birds. The male continues the distraction while the female lays the egg. Unlike many other species of cuckoo, the newly-hatched cuckoo chick does not push the other eggs and nestlings out of the nest. It leaves the nest after about ten days and becomes independent in four to six weeks.

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Gray-headed Fruit-Dove

Gray-headed Fruit-Dove

Ptilinopus hyogastrus

A small, strikingly handsome green dove with contrastingly pale gray head and markings on the back and wings, a deep claret-colored belly patch, and a lemon-yellow underside to the tail. Unique within its limited range in the north Moluccas. Found in small groups in the canopy of forests and forest edges within the lowlands and foothills. Call is a “whooOOOo,” becoming louder as it advances.

Hudson's Black-Tyrant

Hudson's Black-Tyrant

Knipolegus hudsoni

Highly migratory flycatcher that breeds in central Argentina from around September through March, then disperses north to Bolivia and Paraguay, and occasionally wanders even farther. Male is glossy black with a silvery, black-tipped bill. He has a white on the underside of the wing that is usually hidden while perched. Female is brown and buff with white wingbars, cinnamon rump and tail base, and faint mottling on the breast. Very similar to White-winged Black-Tyrant; female is paler on the breast and belly, but males are virtually indistinguishable in the field. Inhabits stunted forest, scrub, and overgrown clearings.

African Palm Swift

African Palm Swift

Cypsiurus parvus

A very slender gray-brown swift with a long, deeply forked tail that is often held closed, making it look needle-like and pointed. The erratic flight pattern, with frequent direction changes and rapid wingbeats on long, scythe-shaped wings, is distinctive. Less gregarious than other swifts; usually found in pairs or small flocks, and association with other swallows and swifts is usually only fleeting. Forages over a wide variety of habitats with palms, including savanna, coastal scrub, towns, villages, cultivated areas, forest edge, and clearings, from sea level up to 1800 meters of elevation, preferring lowlands. Nests and roosts in palms and uses its tiny legs with hook-like claws to cling to the undersides of fronds. Gives a high-pitched, metallic “tre-tit-tit-tit-tit-tit-tit-tit” call, solitarily or in unison with others. Separated from other swifts by its longer and thinner tail.

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。