Blue Duck
Hymenolaimus malacorhynchos
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<birdfyi-bird slug="hymenolaimus-malacorhynchos"></birdfyi-bird>The Blue Duck (Hymenolaimus malacorhynchos) is a bird species in the family Anatidae (enten, gänse und schwäne), within the order Anseriformes (wasservögel). Recorded measurements include a wingspan of 45.6 cm and a weight of 861.8 g. The IUCN Red List classifies it as Endangered.
On this page
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.
Erhaltungsstatus
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.
countries highlighted
External Databases
Häufig gestellte Fragen
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Similar Birds
Other species in the Anatidae family