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Blue Duck

Hymenolaimus malacorhynchos

Endangered
翼展
45.6 cm
体重
861.75 g
Anatidae
Anseriformes

关于

蓝鸭是新西兰特有的物种,被誉为新西兰的国鸟候选之一。以其在湍急山溪中生活的独特习性著称,是世界上少数几种专门适应激流环境的鸭类之一。全身蓝灰色,嘴部淡黄色,末端有特化的软皮质边缘,适于在水下觅食。由于外来捕食者和栖息地退化,被列为濒危物种。

Physical Description

Measurement Value Imperial
翼展 45.6 cm 18.0 in
体重 861.75 g 30.40 oz

识别

羽毛

Distinctive slate-blue-gray plumage; breast spotted with chestnut-brown in both sexes. Pale bill with flexible pink lobes at tip. Chestnut eye. Sexes similar; adapted to fast-flowing mountain streams in New Zealand.

Habitat & Range

Fast-flowing clear turbulent mountain rivers and streams in pristine native forest at 300–1,500 m in both main islands of New Zealand. Requires undisturbed riparian habitat with abundant aquatic invertebrates.

分布范围

Breeds on open prairie wetlands of the Great Plains; winters in shallow estuaries and marshes along the Gulf of Mexico.

Diet & Feeding

Eats aquatic invertebrates, seeds, and plant material; dabbles in shallow fresh water; invertebrate diet peaks in breeding season.

保护状况

Endangered
IUCN Red List

行为与繁殖

筑巢

Nest type: CR,CV. Incubation: 31-35 days. Fledging: 70-82 days.

产卵数

5-6

声音

鸣唱

A soft, musical whistle from fast-flowing South Island rivers. Call is a clear 'whio' — giving the bird its Maori name. Also gives a soft, reedy 'squeak'. Endangered; rarely heard.

分类学

Kingdom Animalia
Phylum Chordata
Class Aves
Anseriformes (Waterfowl)
Anatidae (Ducks, Geese & Swans)
Genus Hymenolaimus
物种 Hymenolaimus malacorhynchos

Distribution

Blue Duck has been recorded in 1 countries.

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出现 Not recorded
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countries highlighted

External Databases

常见问题

What does the Blue Duck eat?
Eats aquatic invertebrates, seeds, and plant material; dabbles in shallow fresh water; invertebrate diet peaks in breeding season.
Where does the Blue Duck live?
Fast-flowing clear turbulent mountain rivers and streams in pristine native forest at 300–1,500 m in both main islands of New Zealand. Requires undisturbed riparian habitat with abundant aquatic invertebrates.
Is the Blue Duck endangered?
The Blue Duck has a conservation status of Endangered.
How does the Blue Duck nest?
Nest type: CR,CV. Incubation: 31-35 days. Fledging: 70-82 days.
What does the Blue Duck sound like?
A soft, musical whistle from fast-flowing South Island rivers. Call is a clear 'whio' — giving the bird its Maori name. Also gives a soft, reedy 'squeak'. Endangered; rarely heard.
How big is the Blue Duck?
The Blue Duck has a wingspan of 45.6 cm, weight of 861.75 g.
What order and family does the Blue Duck belong to?
The Blue Duck (Hymenolaimus malacorhynchos) belongs to the order Anseriformes and the family Anatidae.

Similar Birds

Other species in the Anatidae family

比较

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