Campbell Teal vs Greater White-fronted Goose
Anas nesiotis 비교 대상 Anser albifrons
Side-by-Side Comparison
| 속성 | Campbell Teal | Greater White-fronted Goose |
|---|---|---|
| 학명 | Anas nesiotis | Anser albifrons |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | — |
| 날개 폭 | 24.4 cm (9.6 in) | 81.6 cm (32.1 in) |
| 체중 | 358.75 g (12.65 oz) | 2471.0 g (87.16 oz) |
| 식성 | -- | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … |
| 산란 수 | 5-6 | 3-9 |
| Population Trend | — | — |
Habitat Comparison
Campbell Teal
Restricted to Campbell Island and Dent Island in the subantarctic New Zealand group. Dense tussock grassland, rocky shores, and freshwater streams. Nocturnal or crepuscular. Highly sedentary.
Greater White-fronted Goose
Breeds on Arctic and subarctic tundra and peatlands. Winters on estuaries, agricultural fields, freshwater marshes, and flooded meadows across Europe, Asia, and North America. One of the most widespread geese.
Song & Call Comparison
Campbell Teal
Female produces a very soft quacking note; male gives a faint squeak. Near-silent; rarely vocalizes; the reduced call apparatus mirrors the species' severely limited wingspan and near-flightlessness.
Greater White-fronted Goose
A loud, laughing 'kow-lyuk' or musical 'wah-wah'. Gives a distinctive high-pitched yodeling quality lacking in Greylag. Highly vocal in large winter flocks.
Geographic Range & Migration
Campbell Teal
Greater White-fronted Goose
Breeds in the potholes region of the northern Great Plains; winters in the southern United States and along the Gulf Coast.
보전 상태
Campbell Teal
Greater White-fronted Goose
How to Tell Them Apart
Campbell Teal
Very dark brown plumage; males have iridescent green head gloss and white eye-ring. Females dark brown with white eye-ring. Flightless; tiny vestigial wings. Recovered from near-extinction on Campbell Island, New …
Greater White-fronted Goose
Brown-gray body with white forehead patch bordered by white band at bill base. Underparts with bold irregular black bars on belly. Orange bill; orange-yellow legs. Juveniles lack white front and …
About These Birds
Campbell Teal
캠벨 오리는 뉴질랜드 캠벨 섬에 서식하는 극히 작은 개체군을 가진 오리입니다. 짧은 날개와 갈색 깃털이 특징이며, 박멸 사업을 통해 섬에서 쥐가 제거된 후 개체 수가 회복 중입니다.
Greater White-fronted Goose
흰이마기러기는 북극 툰드라에서 번식하고 온대 지역에서 월동하는 기러기입니다. 성체의 흰 이마와 오렌지색 다리가 특징이며, 농경지와 초원에서 풀과 곡물을 먹습니다.