Mallard vs Flying Steamerduck
Anas platyrhynchos 비교 대상 Tachyeres patachonicus
Side-by-Side Comparison
| 속성 | Mallard | Flying Steamerduck |
|---|---|---|
| 학명 | Anas platyrhynchos | Tachyeres patachonicus |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 58.0 cm (22.8 in) | — |
| 날개 폭 | 90.0 cm (35.4 in) | 57.4 cm (22.6 in) |
| 체중 | 1100.0 g (38.80 oz) | 2620.75 g (92.44 oz) |
| 식성 | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … | -- |
| 산란 수 | 4-18 | 5-9 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Flying Steamerduck
Freshwater lakes, rivers, coastal bays, and channels in Patagonian Chile and Argentina from the Lakes Region south to Tierra del Fuego. Partially migratory; some populations move to coasts in winter.
Song & Call Comparison
Mallard
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
Flying Steamerduck
A harsh, rattling 'rrrrr' and nasal calls. Flying Steamerduck can fly (unlike some relatives) and gives vocal calls in flight. Contact calls are clattering and guttural.
Geographic Range & Migration
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
Flying Steamerduck
보전 상태
Mallard
Flying Steamerduck
How to Tell Them Apart
Mallard
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
Broad, flat bill — yellow-green in males, orange-brown in females
Flying Steamerduck
Males gray with chestnut-brown breast and white eye-stripe. Females brown-gray with white eye-ring and chestnut flanks. Orange-yellow bill. Only Tachyeres species capable of sustained flight. Wings larger.
About These Birds
Mallard
가장 잘 알려진 야생 오리로 체장 50–65cm이며, 수컷은 광택 있는 녹색 머리와 노란 부리, 자주빛 갈색 가슴, 흰색 목 고리를 갖는다. 북반구 전역과 호주에 귀화하여 온대 내지 아열대 습지, 호수, 강, 도시 공원에 서식한다. 잡식성으로 식물, 곤충, 작은 어류를 먹는다. 관심 필요 종이다.
Flying Steamerduck
The only flying species among the four steamerducks, with grey plumage, rufous-washed head, and an orange-yellow bill. Can fly strongly unlike its relatives. Found in Patagonian freshwater and coastal habitats. Highly territorial; pairs defend stretches of river or lakeshore aggressively.