Indian Spot-billed Duck vs Brent Goose
Anas poecilorhyncha 비교 대상 Branta bernicla
Side-by-Side Comparison
| 속성 | Indian Spot-billed Duck | Brent Goose |
|---|---|---|
| 학명 | Anas poecilorhyncha | Branta bernicla |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 54.4 cm (21.4 in) | 63.9 cm (25.2 in) |
| 체중 | 1220.0 g (43.03 oz) | 1335.0 g (47.09 oz) |
| 식성 | Dives for fish and aquatic invertebrates in clear cold streams; serrated bill adapted for catching … | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … |
| 산란 수 | 6-12 | 1-10 |
| Population Trend | — | — |
Habitat Comparison
Indian Spot-billed Duck
Freshwater lakes, rivers, marshes, rice paddies, and tanks across the Indian subcontinent to Southeast Asia. Common near human habitation. Largely sedentary with some local seasonal movement.
Brent Goose
Breeds on high-Arctic tundra; winters on estuaries, coastal mudflats, saltmarshes, and sea-grass beds along Atlantic and Pacific coastlines. One of the most strictly coastal wintering geese.
Song & Call Comparison
Indian Spot-billed Duck
Female gives a loud, emphatic quacking series; male produces a raspy rehb note. Calls are Mallard-like but slightly lower; flocks create a cacophonous quacking chorus on Indian lakes.
Brent Goose
A low, guttural 'rronk' or 'ronk-ronk' from flocks. Soft nasal calls in feeding groups. A subtle, understated call for a goose — less loud than most Anser geese.
Geographic Range & Migration
Indian Spot-billed Duck
Resident in freshwater lakes and rivers across Southeast Asia, from Myanmar to Indonesia and the Philippines.
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
보전 상태
Indian Spot-billed Duck
Brent Goose
How to Tell Them Apart
Indian Spot-billed Duck
Large brownish duck with pale face and distinctive yellow-tipped black bill with red basal spot. Dark cap and eye stripe. Iridescent green speculum with white border. White tertials visible at …
Brent Goose
Small; mostly black head, neck, and breast. Small white neck-patch on adults. Back dark brownish-gray; belly pale gray to white depending on subspecies. White undertail coverts. Sexes similar.
About These Birds
Indian Spot-billed Duck
반점 부리 오리는 남아시아와 동아시아에 널리 분포하는 중간 크기의 오리입니다. 부리 끝의 노란 반점과 부리 기부의 붉은 반점이 특징이며, 습지와 호수에서 흔히 발견됩니다.
Brent Goose
검은 머리와 목, 작은 흰 목 반점, 연한 회색 배를 가진 작은 어두운 몸통의 기러기입니다. 고위도 북극 번식지와 온대 해안 월동지 사이를 이동합니다. 겨울에 잘피와 염습지 식생을 먹습니다. 세 아종이 배 색상이 다릅니다.