Pacific Emerald Dove
Chalcophaps longirostris
Squat ground-dwelling dove with shimmering green wings. Note chocolate-brown body. Found in forest and forest edge, where it forages on the ground; often flushed at close quarters with a loud wing-clatter. Usually solitary, occasionally in flocks or small groups. Song is an accelerating and rising series of mournful coos.
识别特征
This is a common species in rainforest and similar dense wet woodlands, farms, gardens, mangroves, and coastal heaths. It builds a scant stick nest in a tree up to five metres and lays two cream-coloured eggs. Breeding tends to occur in Australia in spring or early summer in southeastern Australia and late in the dry season in northern Australia.<p>Its flight is fast and direct, with the regular beats and an occasional sharp flick of the wings which are characteristic of pigeons in general. It often flies low between the patches of dense forest it prefers, but when disturbed will frequently walk away rather than fly. They are particularly good weavers when flying through forests. When flying they expose a buff underwing and a chestnut colour of their flight feathers.<p>The Pacific emerald dove is a stocky, medium-sized pigeon, typically 23 to 28 centimetres (9.1 to 11.0 inches) in length. The back and wings are bright emerald green. The flight feathers and tail are blackish, and broad black and white bars show on the lower back in flight. The head and underpants are dark vinous pink fading to greyish on the lower belly. The eyes are dark brown, the bill bright red, and the legs and feet rufous.<p>The male has a white patch on the edge of the shoulders and a grey crown, which the female lacks. Females will tend to have a browner complexion with a grey mark on the shoulder. Immature birds resemble females but have brown scallops on their bodies and wing plumage.<p>Pacific emerald doves usually occur singly, in pairs, or in small groups. They are quite terrestrial, often searching for fallen fruit on the ground and spending little time in trees except when roosting. They eat seeds and fruits of a wide variety of plants and are generally tame and approachable.<p>The call is a low soft moaning cooing consisting of about six to seven coos starting quietly and rising. They also call a nasal "hoo-hoo-hoon". Males perform a bobbing dance during courtship.
分类信息
Genus: Chalcophaps; Family: Columbidae; Order: Columbiformes.
- 学名
- Chalcophaps longirostris
- 命名信息
- Gould, 1848
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Chalcophaps
分布与栖息地
- 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
Yellow-crowned Elaenia
Myiopagis flavivertex
Small, inconspicuous bird of coastal swamps and seasonally inundated forests. Yellow crown is essentially impossible to see under most viewing conditions; note dull overall appearance, indistinct wing bars, and longish tail. Inhabits upper levels of tall forest; also occurs in abandoned plantations and other disturbed habitats, where it may be found closer to the ground. Feeds on insects and fruit. Most similar to Greenish Elaenia but has more prominent wing bars; Forest Elaenia is more clean-cut, with a stronger facial pattern and white crown patch. Explosive song is a decelerating cackle; it is distinctive once learned and usually the most reliable indicator of this species’s presence.
Black-winged Stilt
Himantopus himantopus
Striking large black-and-white wader with a thin, straight bill and bright pink legs, found in wetlands with open shallow water throughout much of Africa and Eurasia, often in brackish habitats. Some populations are migratory, departing northerly breeding grounds for warmer southern regions. Often forms noisy colonies on bare ground near water. Essentially unmistakable throughout much of its range, but compare with Pied Stilt in parts of Southeast Asia. Feeds by wading in water, picking from the water surface with its needle-like bill. In flight, long pink legs stick out far beyond the tail. Calls loudly and stridently, especially when alarmed during the breeding season.
Karoo Bustard
Heterotetrax vigorsii
A medium-sized, drab, gray-brown bustard with a plain face and black throat patch. Creamy wing patches are displayed in flight. Small groups prefer semi-arid Karoo and barren farmland, where they feed on plants and small animals. During the heat of the day it retreats to drainage lines, where they shelter under thicker cover. Often first detected by its dry, throaty, frog-like two-or-three-syllabled “kraak-krook” or “kraak-krook-kook” calls, which are sometimes echoed by other group members, creating a choral cacophony. Vocal in the morning and late afternoon.
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