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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Giới Thiệu
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 |
|---|---|---|
| Chiều Dài Sải Cánh | 45,6 cm | 18.0 in |
| Khối Lượng | 861,75 g | 30.40 oz |
Nhận Dạng
Bộ Lông
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.
Tình Trạng Bảo Tồn
Hành Vi & Sinh Sản
Làm Tổ
Nest type: CR,CV. Incubation: 31-35 days. Fledging: 70-82 days.
Số Trứng
5-6
Âm Thanh
Tiếng Hót
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.
Phân Loại Học
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Bộ | Anseriformes (Waterfowl) |
| Họ | Anatidae (Ducks, Geese & Swans) |
| Genus | Hymenolaimus |
| Loài | Hymenolaimus malacorhynchos |
Distribution
Blue Duck has been recorded in 1 countries.
countries highlighted
External Databases
Câu Hỏi Thường Gặp
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