Reunion Shelduck vs Mandarin Duck
Alopochen kervazoi เปรียบเทียบกับ Aix galericulata
Side-by-Side Comparison
| คุณสมบัติ | Reunion Shelduck | Mandarin Duck |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Alopochen kervazoi | Aix galericulata |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Extinct | Least Concern |
| ความยาว | — | 44.0 cm (17.3 in) |
| กว้างปีก | — | 70.0 cm (27.6 in) |
| น้ำหนัก | — | 570.0 g (20.11 oz) |
| อาหาร | Extinct Reunion shelduck; likely fed on grasses, seeds, and aquatic invertebrates near coastal wetlands based … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| จำนวนไข่ | -- | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Reunion Shelduck
Historically restricted to Réunion Island in the Mascarene archipelago. Now extinct; last evidence from early colonial period. Presumably inhabited freshwater wetland habitats on the island.
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
Reunion Shelduck
Extinct (EX); no vocalizations recorded. The Reunion Shelduck was exterminated soon after European contact. No contemporary accounts of its call survive in the historical record.
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
Reunion Shelduck
Formerly found across the Pacific from Hawaii to New Zealand. Extinct by the 19th century; survived late on uninhabited islands.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
สถานะการอนุรักษ์
Reunion Shelduck
Mandarin Duck
How to Tell Them Apart
Reunion Shelduck
Extinct Mascarene species known only from subfossil bones found on Réunion. Plumage unrecorded; presumed similar to Egyptian Goose with brownish-gray tones. Extirpated following European colonization.
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
Reunion Shelduck
An extinct shelduck formerly endemic to Réunion Island in the Indian Ocean. Known only from subfossil bones and brief historical records from the 17th century. Went extinct shortly after European colonization. No illustrations or detailed physical description of the living bird is known.
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.