Mottled Duck vs Spotted Whistling-duck
Anas fulvigula 비교 대상 Dendrocygna guttata
Side-by-Side Comparison
| 속성 | Mottled Duck | Spotted Whistling-duck |
|---|---|---|
| 학명 | Anas fulvigula | Dendrocygna guttata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 48.9 cm (19.3 in) | 41.3 cm (16.3 in) |
| 체중 | 1027.5 g (36.24 oz) | 677.5 g (23.90 oz) |
| 식성 | Dives for freshwater fish and aquatic invertebrates; saw-edged bill grips prey; diet strongly fish-dominated year-round. | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 산란 수 | 9-13 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Mottled Duck
Coastal freshwater and brackish marshes, wet prairies, and gulf coast wetlands in Florida and along the Gulf of Mexico coast to Texas. Non-migratory year-round resident. Threatened by Mallard hybridization.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Mottled Duck
Female gives a loud, Mallard-like quacking series; male produces a soft, nasal note. Alarm call is a rapid, emphatic quacking burst; flocks generate a loud chorus on Gulf Coast marshes.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Mottled Duck
Breeds across sub-Arctic and boreal regions of Eurasia; winters in sub-Saharan Africa and South Asia.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
보전 상태
Mottled Duck
Spotted Whistling-duck
How to Tell Them Apart
Mottled Duck
Rich mottled brown plumage with buff-edged feathers and pale buff head and throat. Dark crown and eye stripe. Iridescent blue speculum with white border. Yellow-orange bill. Sexes similar. Resembles non-breeding …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Mottled Duck
플로리다 오리 또는 모틀드 덕이라고도 불리는 이 종은 미국 남부 플로리다와 멕시코만 연안에 서식하는 중간 크기의 오리입니다. 말라드와 비슷하지만 뺨이 더 밝고 꼬리 깃털이 더 어둡습니다.
Spotted Whistling-duck
옆구리에 굵은 흰 반점, 주황-붉은 부리와 다리, 엷은 얼굴을 가진 소형 어두운 갈색 홍따오기. 뉴기니·필리핀·인도네시아의 열대 습지에 서식. 종종 담수 개울과 침수 초원 근처에서 발견. 다른 홍따오기보다 덜 사회적.