Snowy Owl vs Papuan Hawk-owl
Bubo scandiacus 比較対象 Uroglaux dimorpha
Side-by-Side Comparison
| 属性 | Snowy Owl | Papuan Hawk-owl |
|---|---|---|
| 学名 | Bubo scandiacus | Uroglaux dimorpha |
| 目 | Strigiformes | Strigiformes |
| 科 | Strigidae | Strigidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | 63.0 cm (24.8 in) | — |
| 翼開長 | 145.0 cm (57.1 in) | 41.7 cm (16.4 in) |
| 体重 | 2100.0 g (74.08 oz) | 220.0 g (7.76 oz) |
| 食性 | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … | -- |
| 一腹卵数 | 3-14 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
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.
Papuan Hawk-owl
Geographic Range & Migration
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Papuan Hawk-owl
保全状況
Snowy Owl
Papuan Hawk-owl
How to Tell Them Apart
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
Papuan Hawk-owl
About These Birds
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.