Black-capped Screech-owl vs Snowy Owl
Megascops atricapilla 비교 대상 Bubo scandiacus
Side-by-Side Comparison
| 속성 | Black-capped Screech-owl | Snowy Owl |
|---|---|---|
| 학명 | Megascops atricapilla | Bubo scandiacus |
| 목 | Strigiformes | Strigiformes |
| 과 | Strigidae | Strigidae |
| 보전 상태 | Least Concern | Vulnerable |
| 체장 | — | 63.0 cm (24.8 in) |
| 날개 폭 | 34.2 cm (13.5 in) | 145.0 cm (57.1 in) |
| 체중 | 133.0 g (4.69 oz) | 2100.0 g (74.08 oz) |
| 식성 | -- | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| 산란 수 | 2-3 | 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
Black-capped Screech-owl
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
Black-capped Screech-owl
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
보전 상태
Black-capped Screech-owl
Snowy Owl
How to Tell Them Apart
Black-capped Screech-owl
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
Black-capped Screech-owl
소형 귀가 있는 올빼미로 체장 약 22cm이며, 갈색 얼룩무늬에 검은 왕관과 독특한 울음소리를 갖는다. 브라질 대서양 산림과 아르헨티나 북동부의 밀림에 서식한다. 밤에 곤충과 소형 척추동물을 사냥한다. 관심 필요 종이다.
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.