흰머리수리 vs Downy Woodpecker
Haliaeetus leucocephalus 비교 대상 Picoides pubescens
Side-by-Side Comparison
| 속성 | 흰머리수리 | Downy Woodpecker |
|---|---|---|
| 학명 | Haliaeetus leucocephalus | Picoides pubescens |
| 목 | Accipitriformes | Piciformes |
| 과 | Accipitridae | Picidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | 79.0 cm (31.1 in) | 16.0 cm (6.3 in) |
| 날개 폭 | 203.0 cm (79.9 in) | 28.0 cm (11.0 in) |
| 체중 | 4300.0 g (151.68 oz) | 27.0 g (0.95 oz) |
| 식성 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Insects and larvae extracted from bark, supplemented with seeds, berries, and suet at feeders. Often … |
| 산란 수 | 1-4 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
흰머리수리
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Downy Woodpecker
Deciduous and mixed forests, orchards, parks, and suburban areas. The most common woodpecker at feeders in North America.
Song & Call Comparison
흰머리수리
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
Downy Woodpecker
A sharp 'pik' or 'peek' contact call. Drums on resonant branches with a rapid, light tattoo — softer than larger woodpeckers. Also gives a high descending whinny 'keeer-keeer'.
Geographic Range & Migration
흰머리수리
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Downy Woodpecker
North America from Alaska and Canada south through the United States, excluding the arid Southwest.
보전 상태
흰머리수리
Downy Woodpecker
How to Tell Them Apart
흰머리수리
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
Large, hooked, bright yellow bill
Downy Woodpecker
Black and white plumage with a broad white stripe down the back. Black wings with white spots. Males have a small red patch on the nape.
Short, chisel-shaped, dark bill — noticeably shorter than the similar hairy woodpecker
About These Birds
흰머리수리
흰머리독수리는 미국의 국조이자 국가 상징입니다. DDT 살충제 사용으로 인해 한때 멸종위기에 처했으나 놀라운 회복을 보여 2007년 멸종위기종 목록에서 제외되었습니다. 이 강력한 맹금류는 어떤 새보다 가장 큰 나무 둥지를 만들며, 어떤 것들은 2톤 이상이 됩니다.
Downy Woodpecker
솜털딱따구리는 북아메리카에서 가장 작고 가장 널리 분포하는 딱따구리이다. 소형 체구 덕분에 더 큰 딱따구리가 접근할 수 없는 가는 나뭇가지와 잡초 줄기에서 먹이를 찾을 수 있다. 솜털딱따구리는 겨울에 혼종 무리에 합류하여 여러 종이 함께 포식자를 감시하는 이점을 얻는다.