Canada Goose vs Spotted Whistling-duck
Branta canadensis 비교 대상 Dendrocygna guttata
Side-by-Side Comparison
| 속성 | Canada Goose | Spotted Whistling-duck |
|---|---|---|
| 학명 | Branta canadensis | Dendrocygna guttata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 84.6 cm (33.3 in) | 41.3 cm (16.3 in) |
| 체중 | 4906.599999999999 g (173.08 oz) | 677.5 g (23.90 oz) |
| 식성 | Grazes aquatic vegetation and grasses in Arctic tundra; migrates south to winter on estuaries eating … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 산란 수 | 1-8 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Canada Goose
Lakes, rivers, ponds, parks, golf courses, agricultural fields, and coastal marshes across North America. Breeds on ground near water. Many populations now resident year-round in temperate urban areas.
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
Canada Goose
A loud, resonant 'a-honk' or 'hrr-onk'. Flocks produce a constant clamoring honk during migration. Also gives softer cackling contact calls. One of the most recognizable bird sounds.
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
Canada Goose
Breeds across Canada and Alaska; winters from the contiguous US to northern Mexico. Introduced populations resident in Europe and New Zealand.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
보전 상태
Canada Goose
Spotted Whistling-duck
How to Tell Them Apart
Canada Goose
Black head and long neck with bold white chin strap. Back and wings brown-gray; underparts pale tan to white on belly. White undertail coverts. Tail black. Large and familiar; sexes …
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
Canada Goose
검은 머리와 목, 흰 턱끈 반점, 갈색 몸통, 흰 아래꼬리를 가진 친숙한 큰 기러기입니다. 북미에서 가장 넓게 분포하는 기러기입니다. 적응력 덕분에 도시 공원에서 개체수가 극적으로 늘었습니다. 북부 범위에서 이동성이 있으며 온대 지역에서 점점 더 정주성입니다.
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.