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Blue Duck

Hymenolaimus malacorhynchos

Endangered
Flügelspannweite
45,6 cm
Gewicht
861,75 g
Familie
Anatidae
Ordnung
Anseriformes

Über uns

A medium-sized blue-grey torrent duck with a pale pink bill tipped with a distinctive flap of skin, and chestnut-spotted breast. Endemic to New Zealand's fast-flowing mountain rivers. One of New Zealand's most endangered endemics. Monogamous with strong site fidelity to individual river territories.

Physical Description

Measurement Value Imperial
Flügelspannweite 45,6 cm 18.0 in
Gewicht 861,75 g 30.40 oz

Identifizierung

Gefieder

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.

Geografisches Verbreitungsgebiet

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.

Erhaltungsstatus

Endangered
IUCN Red List

Verhalten & Brutverhalten

Nistverhalten

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

Gelegegröße

5-6

Lautgebung

Gesang

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.

Taxonomie

Kingdom Animalia
Phylum Chordata
Class Aves
Ordnung Anseriformes (Wasservögel)
Familie Anatidae (Enten, Gänse und Schwäne)
Genus Hymenolaimus
Arten Hymenolaimus malacorhynchos

Distribution

Blue Duck has been recorded in 1 countries.

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Vorhanden Not recorded
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countries highlighted

External Databases

Häufig gestellte Fragen

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

Vergleichen

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