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 (ducks, geese & swans), within the order Anseriformes (waterfowl). Recorded measurements include a wingspan of 45.6 cm and a weight of 861.8 g. The IUCN Red List classifies it as Endangered.
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Sobre
O pato-azul da Nova Zelândia é um pato único e ameaçado encontrado em rios de montanha de correnteza rápida na Nova Zelândia. Tem plumagem cinzenta azulada com bico rosadinhas. Está altamente especializado para a vida em rios torrenciais de montanha. Alimenta-se de invertebrados aquáticos. As populações sofreram declínios severos devido a predadores introduzidos como furões, arminhões e ratos. Os esforços de conservação incluem programas de controlo de predadores e criação em cativeiro.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| Envergadura | 45,6 cm | 18.0 in |
| Peso | 861,75 g | 30.40 oz |
Identificação
Plumagem
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.
Estado de conservação
Comportamento e reprodução
Nidificação
Nest type: CR,CV. Incubation: 31-35 days. Fledging: 70-82 days.
Tamanho da postura
5-6
Som
Canto
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.
Taxonomia
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Ordem | Anseriformes (Waterfowl) |
| Família | Anatidae (Ducks, Geese & Swans) |
| Genus | Hymenolaimus |
| Espécies | Hymenolaimus malacorhynchos |
Distribution
Blue Duck has been recorded in 1 countries.
countries highlighted
External Databases
Perguntas frequentes
Where does the Blue Duck live?
Is the Blue Duck endangered?
How does the Blue Duck nest?
What does the Blue Duck sound like?
How big is the Blue Duck?
What order and family does the Blue Duck belong to?
Similar Birds
Other species in the Anatidae family