Australasian Swamphen

Porphyrio melanotus

Conspicuous blue and black waterhen with gigantic red bill and forehead shield. Has large feet and white under tail feathers which it flicks up and down when walking. Occurs in a wide variety of wetland habitats and is a common sight in urban parks. They are very vocal, often making loud crowing calls and a range of other shorter squawks, including a single note squawk at night.

识别特征

The New Zealand population (along with green-yellow swamphens in Tasmania) are possibly slightly larger than mainland Australian birds, but are otherwise identical. When threatened, they will often walk away from danger rather than fly. When they fly, take-offs and landings are clumsy, and short flight distances are preferred.

分类信息

学名
Porphyrio melanotus
命名信息
Temminck, 1820
Gruiformes
Rallidae
Porphyrio

分布与栖息地

The Australasian swamphen occurs in mainland Australia, eastern Indonesia, the Moluccas, Aru and Kai Islands, and in Papua New Guinea. It is also found on New Zealand's main islands and in the Chatham and Kermadec Islands. It has a small shield, black upperparts, and a purple throat and breast. P. p. pelewensis (Hartlaub & Finsch, 1872) from Palau, resembles melanotus but has greener upperparts and is smaller. P. p. melanopterus (Bonaparte, 1856) is found from the Lesser Sundas and Moluccas to New Guinea. It is as melanotus but smaller, more variable and less blue in the upperparts. P. p. bellus (Gould, 1820) from Western Australia is as melanotus but has a cerulean blue throat and breast. P. p. samoensis (Peale, 1848) occurs from New Guinea to New Caledonia and Samoa, and is as melanotus but smaller, with a brown tinge on the back.

行为

Australasian swamphens are considered to be the ancestors of several island species including the extinct Lord Howe swamphen and two species of takahē in New Zealand. On islands where closely related species have become extinct or declined due to human interference, such as New Zealand or New Caledonia, this species has established itself relatively recently.

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鸟叫声

其他鸟类

Gorgeted Puffleg

Gorgeted Puffleg

Eriocnemis isabellae

Rare and endangered hummingbird found in the Andes of southwestern Colombia. Accessing its tiny known range is difficult, and only a few intrepid and lucky birders have seen one. Male looks quite dark, but has a glittering blue throat bordered on both sides by iridescent green as well as white leg puffs and a blue vent. Female is mostly green with a buffy tinge to the underparts, faint whisker marks, and smaller leg puffs; she is similar to female Glowing Puffleg, but typically has a fainter throat patch and less buff on the neck. Inhabits stunted cloud forest at high elevations.

Yellow-throated Flycatcher

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Medium-sized, active flycatcher of forest canopy; often observed on the periphery of mixed-species flocks. When seen well, note entirely yellow underparts, including throat. Found in a variety of lowland forest types, including tall rainforest and low-stature forests on sandy soils. Forages actively, almost always in small groups; often sits on top of large leaf clusters on outer branches. Similar to several other kiskadee-like flycatchers, but behavior and voice are quite different. Quite vocal; often-heard call is a distinctive hollow rattle with a purring quality.

Black-bibbed Cicadabird

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A medium-sized bird of lowland and foothill forest. Gray on the crown and back, with black feathers in the edge of the wing and a black tail with white corners. Male has a black forehead, face, and chest, and female has gray underparts. Races differ, with southern birds having paler bellies. Female is similar to female Blackish Cuckooshrike, but Black-bibbed has a stouter bill and a paler belly. Voice includes a sharp “wek!” and a downslurred whistle repeated at short intervals.

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