New Zealand Scaup vs Mandarin Duck
Aythya novaeseelandiae 对比 Aix galericulata
Side-by-Side Comparison
| 属性 | New Zealand Scaup | Mandarin Duck |
|---|---|---|
| 学名 | Aythya novaeseelandiae | Aix galericulata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 44.0 cm (17.3 in) |
| 翼展 | 35.4 cm (13.9 in) | 70.0 cm (27.6 in) |
| 体重 | 645.5 g (22.77 oz) | 570.0 g (20.11 oz) |
| 食性 | Dives for molluscs, crustaceans, and aquatic invertebrates; diet dominated by benthic hard-shelled prey in coastal … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 产卵数 | 2-13 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
New Zealand Scaup
Deep freshwater lakes, reservoirs, and large rivers across both main islands of New Zealand, particularly on high-country glacial lakes. Dives to depths of over 3 m for food. Forms large flocks in winter.
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
Song & Call Comparison
New Zealand Scaup
Male produces a low, soft wheeze; female gives a short, harsh quack. Relatively quiet; subdued vocalizations suit this diving duck of deep, clear New Zealand lakes and reservoirs.
Mandarin Duck
Male gives a low whistled 'hib' or 'weep'. Female utters a soft quacking 'kek'. Generally quiet and secretive. No loud territorial song; vocalizations subtle and brief.
Geographic Range & Migration
New Zealand Scaup
Breeds in the boreal forests of Canada; winters on large lakes and coastal bays across the southern United States.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
保护状况
New Zealand Scaup
Mandarin Duck
How to Tell Them Apart
New Zealand Scaup
Males entirely black with green iridescence on head; yellow eye; dark blue-gray bill. Females dark brown with white face patches around bill base. White wing stripe in flight. New Zealand …
Mandarin Duck
Breeding males have an elaborate pattern of orange, green, white, and purple with distinctive orange sail feathers on the back. Females are grey-brown with a white eye-ring and stripe.
Small red bill in breeding males, pinkish in females
About These Birds
New Zealand Scaup
A small compact all-dark diving duck with a yellow eye in males, known in New Zealand as the 'black teal.' Endemic to New Zealand. The only native diving duck still widespread on both main islands. Gregarious; forms large flocks on deep mountain lakes.
Mandarin Duck
The mandarin duck is widely considered the most beautiful duck in the world. In East Asian culture, mandarin ducks symbolize love and fidelity because they form strong pair bonds. Unlike most ducks, mandarins nest in tree holes up to 9 meters above the ground, and day-old ducklings must leap to the ground.