흰머리수리 vs Snowy Owl
Haliaeetus leucocephalus 비교 대상 Bubo scandiacus
Side-by-Side Comparison
| 속성 | 흰머리수리 | Snowy Owl |
|---|---|---|
| 학명 | Haliaeetus leucocephalus | Bubo scandiacus |
| 목 | Accipitriformes | Strigiformes |
| 과 | Accipitridae | Strigidae |
| 보전 상태 | Least Concern | Vulnerable |
| 체장 | 79.0 cm (31.1 in) | 63.0 cm (24.8 in) |
| 날개 폭 | 203.0 cm (79.9 in) | 145.0 cm (57.1 in) |
| 체중 | 4300.0 g (151.68 oz) | 2100.0 g (74.08 oz) |
| 식성 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| 산란 수 | 1-4 | 3-14 |
| 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.
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
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.
Snowy Owl
Male gives a deep booming hoot 'hooooo' and a rising 'hoo-hoo' series. Also barks sharply when alarmed. Quieter than many owls; silent during long Arctic winter hunts.
Geographic Range & Migration
흰머리수리
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
보전 상태
흰머리수리
Snowy Owl
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
Snowy Owl
Adult males are almost entirely white. Females and immatures have dark brown barring and spotting. Yellow eyes and fully feathered feet.
Dark hooked bill mostly hidden by dense facial feathering
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.
Snowy Owl
The snowy owl is the heaviest North American owl and one of the most charismatic Arctic birds. Unlike most owls, it is largely diurnal, necessitated by the continuous daylight of Arctic summers. Snowy owl irruptions — periodic mass southward movements — are tied to lemming population cycles.