Brown Teal vs Mallard
Anas chlorotis 비교 대상 Anas platyrhynchos
Side-by-Side Comparison
| 속성 | Brown Teal | Mallard |
|---|---|---|
| 학명 | Anas chlorotis | Anas platyrhynchos |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Near Threatened | Least Concern |
| 체장 | — | 58.0 cm (22.8 in) |
| 날개 폭 | 39.3 cm (15.5 in) | 90.0 cm (35.4 in) |
| 체중 | 683.6 g (24.11 oz) | 1100.0 g (38.80 oz) |
| 식성 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts seasonally. | Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing … |
| 산란 수 | 5-6 | 4-18 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Brown Teal
Dense shrubland, forest streams, freshwater ponds, and coastal wetlands in northern New Zealand, especially Northland and predator-free offshore islands. Most active at dusk and dawn.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
Song & Call Comparison
Brown Teal
Female gives a soft, nasal quacking call; male produces a high, whistled peep. Both sexes are quiet; unobtrusive calls suit this threatened New Zealand nocturnal duck.
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.
Geographic Range & Migration
Brown Teal
Breeds in boreal Canada; winters on the Atlantic coast from Nova Scotia to Florida. Dives in saltwater bays and estuaries.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
보전 상태
Brown Teal
Mallard
How to Tell Them Apart
Brown Teal
Dark brown body with fine mottling. Males have iridescent green head sheen, white eye-ring, and chestnut breast. Females duller and browner with paler face and white eye-ring. Iridescent green speculum. …
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
About These Birds
Brown Teal
수컷에 흰 눈 고리가 있고 짙은 갈색 깃털에 밤색 측면, 초록 날개를 가진 작은 갈색 오리. 뉴질랜드 고유종. 취약 종.
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.