Great Cormorant vs Mandarin Duck
Phalacrocorax carbo 比較対象 Aix galericulata
Side-by-Side Comparison
| 属性 | Great Cormorant | Mandarin Duck |
|---|---|---|
| 学名 | Phalacrocorax carbo | Aix galericulata |
| 目 | Suliformes | Anseriformes |
| 科 | Phalacrocoracidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 90.0 cm (35.4 in) | 44.0 cm (17.3 in) |
| 翼開長 | 145.0 cm (57.1 in) | 70.0 cm (27.6 in) |
| 体重 | 2600.0 g (91.71 oz) | 570.0 g (20.11 oz) |
| 食性 | Fish caught by diving from the surface. Pursues prey underwater using powerful feet for propulsion. … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 一腹卵数 | 1-7 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Great Cormorant
Coasts, estuaries, lakes, rivers, and reservoirs. Nests in colonies in trees, on cliffs, or on the ground.
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
Great Cormorant
Deep, guttural grunts and 'karrr' calls at colonies. Bill-clicking and hissing in threat displays. Silent at sea. Colonial noise can be deafening during the breeding season.
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
Great Cormorant
Very wide range across Europe, Asia, Africa, and Australasia. One of the most widespread cormorant species.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
保全状況
Great Cormorant
Mandarin Duck
How to Tell Them Apart
Great Cormorant
All black with a bronze-green gloss. White throat patch and white thigh patches in breeding season. Yellow-orange face patch around the bill base.
Long, hooked, dark bill with a yellow gape
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
Great Cormorant
The great cormorant is one of the most widespread seabirds in the world. Unlike most waterbirds, cormorants lack fully waterproof plumage, leading to the iconic pose of standing with wings spread open to dry. In Asia, cormorants have been used by fishermen to catch fish for over a thousand years.
Mandarin Duck
オシドリ。東アジア原産の美しいカモ。雄は鮮やかなオレンジ色の「帆羽」と複雑な羽毛模様が特徴的。体長41〜49cm。森林の池や川に生息し、樹洞に巣を作る。ドングリや水草を食べる。低危険種。