Mandarin Duck vs Ruddy Duck

Aix galericulata compared with Oxyura jamaicensis

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Side-by-Side Comparison

Attribute Mandarin Duck Ruddy Duck
Scientific Name Aix galericulata Oxyura jamaicensis
Order Anseriformes Anseriformes
Family Anatidae Anatidae
Conservation Status Least Concern Least Concern
Length 44.0 cm (17.3 in)
Wingspan 70.0 cm (27.6 in) 27.9 cm (11.0 in)
Weight 570.0 g (20.11 oz) 586.6666666666666 g (20.69 oz)
Diet Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … Dives for aquatic plant seeds, roots, and invertebrates in freshwater marshes. Uses stiff tail as …
Clutch Size 7-14 5-15
Population Trend
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Size Comparison

Body Length
Mandarin Duck 44.0 cm
Ruddy Duck
Wingspan
Mandarin Duck 70.0 cm
Ruddy Duck 27.9 cm
Weight
Mandarin Duck 570.0 g
Ruddy Duck 586.6666666666666 g
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Habitat Comparison

Shared Habitats

Mandarin Duck only

Ruddy Duck only

Mandarin Duck

Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.

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Song & Call Comparison

Mandarin Duck

Song

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.

Ruddy Duck

Song

Male produces a mechanical, drumming bok-bok-bok staccato beat; female gives a harsh, nasal quack. The male's rapid drum-roll call on the bill during display is startlingly loud and distinctive.

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Geographic Range & Migration

Mandarin Duck

Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.

Ruddy Duck

Breeds across interior North America from western Canada south to Mexico. Winters on coasts and inland waters south to northern South America.

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Conservation Status

Least Concern

Mandarin Duck

Least Concern

Ruddy Duck

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How to Tell Them Apart

Mandarin Duck

Plumage

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.

Bill

Small red bill in breeding males, pinkish in females

Ruddy Duck

Plumage

Breeding male has vivid rufous-chestnut body, black crown, white cheeks, and bright sky-blue bill; stiff tail often cocked upright. Female is dull brown with pale cheek crossed by single dark …

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About These Birds

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.

Ruddy Duck

A compact stiff-tailed diving duck (~590 g) in family Anatidae, males chestnut-bodied with a sky-blue bill in breeding season. Native to North and South America; an introduced invasive in Europe threatening the White-headed Duck through hybridization. Breeds on freshwater marshes; dives for aquatic plants and invertebrates. Least Concern in native range.

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