Pallid Cuckoo
Heteroscenes pallidus
Large pale cuckoo, which lacks the warmer tones of both Fan-tailed and Brush cuckoos. Yellow eyering, and a dark indistinct stripe across the cheek. Has a distinctive call that has several notes, and tends to perch in prominent places or fence-posts while calling.
识别特征
Characteristics of the appearance of the pallid cuckoo include: a dark bill, a dark eye with a gold eye-ring, a shadowy dark mark from the eye down the neck, a white (or buff) mark on the nape, olive grey feet and prominent white (or buff) toothing along the tail. In flight, there are conspicuous white and dark bars across the long tail. Its silhouette resembles a falcon and often triggers alarm calls from passerines. The pallid cuckoo can have various morphs including light rufous morph or dark rufous morph. <p>In adult males the upperparts including head and neck are grey-brown and have large spots on wing-coverts. In adult females the light-rufous morph is similar to the adult male however with the dark rufous morph the hind neck patch extends onto mantle and it has barring on the chest.<p>A distinguishing feature of the family Cuculidae are the feet, which are zygodactyl, meaning that the two inner toes point forward and the two outer point backward.[citation needed]
分类信息
English ornithologist John Latham described the pallid cuckoo in 1801 as Columba pallida "pale pigeon".<p>Sources differ in the genera placement of this species. It is commonly placed in Cuculus, but genetic evidence and its song support its placement in Cacomantis, with its closest relative the white-crowned cuckoo (Cacomantis leucolophus).<p>"Pallid cuckoo" has been designated the official name by the International Ornithological Committee (IOC). Other common names include unadorned cuckoo, semitone-bird, scale-bird, and brain-fever bird—from its monotonous repetitive call.
- 学名
- Heteroscenes pallidus
- 命名信息
- (Latham, 1801)
- 目
- Cuculiformes
- 科
- Cuculidae
- 属
- Heteroscenes
分布与栖息地
The pallid cuckoo is widely distributed throughout mainland Australia and Tasmania. It spends the winter months in central inland Australia and the Northern Territory. The cuckoo then migrates to South East Australia's coastal region and Tasmania, arriving generally around September or October, sometimes earlier. It has also been observed that migration occasionally occurs to the islands of Timor and Papua New Guinea in the winter months. It is a rare vagrant to New Zealand.<p>The pallid cuckoo has been observed in various different habitats such as in woodland, shrubland, mangrove forest, pastoral country, farmland, golf courses and gardens. However it prefers lightly timbered country with trees and shrubs and a sparse under-story where it can best hunt for prey.
- 繁殖区
- AU : Australia and Tasmania
- 非繁殖区
- to c, e Lesser Sundas
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- rising
照片
分布
鸟叫声
其他鸟类
Gray-headed Kite
Leptodon cayanensis
Scarce hawk of lowland tropical forest. Perches mainly in the canopy, at times giving a long, laughing call. In flight, the wingbeats are loose and floppy. When soaring the wings are held rather level. Adult is distinctive, with a soft gray head, dark eyes (no yellow in the face, unlike most hawks), and rather small grayish feet. Immature has several plumage types, all with 2–3 broad, pale-gray tail bands. One type has a dark brown head and upperparts and whitish underparts with dark streaking; another has a white head and underparts with a small dark cap.
Blue-crowned Hanging-Parrot
Loriculus galgulus
Adorably tiny and luminous parrot. Both sexes have a blue crown and red rump, though these features are much more extensive and noticeable on the male than on the female. Males also have a flashy red throat patch and a yellow-orange patch on the back. Forages in small flocks in forests, parks, and gardens. Usually seen shooting by overhead. Gives high-pitched squeaks, screams, and chatters.
Flores Hawk-Eagle
Nisaetus floris
A large eagle with a bright white head and underside and a chocolate-brown back and uppertail. In flight, appears entirely white except for bold dark bars and tips on outer wings and tail. A rare eagle of forested lowlands and foothills, restricted to several of the Lesser Sundas islands. Larger than immature Rufous-bellied Eagle, with bolder tail bars, an all-white head, and noticeably bulging inner wings, unlike Rufous-bellied. Differs from Short-toed Snake-Eagle in its lack of dark markings on underside of forewing and its clean white underparts.
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