Bare-shanked Screech-owl vs Schnee-Eule
Megascops clarkii verglichen mit Bubo scandiacus
Side-by-Side Comparison
| Merkmal | Bare-shanked Screech-owl | Schnee-Eule |
|---|---|---|
| Wissenschaftlicher Name | Megascops clarkii | Bubo scandiacus |
| Ordnung | Strigiformes | Strigiformes |
| Familie | Strigidae | Strigidae |
| Erhaltungsstatus | Least Concern | Vulnerable |
| Länge | — | 63,0 cm (24.8 in) |
| Flügelspannweite | 36,2 cm (14.3 in) | 145,0 cm (57.1 in) |
| Gewicht | 155,8 g (5.50 oz) | 2100,0 g (74.08 oz) |
| Ernährung | -- | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| Gelegegröße | -- | 3-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Gemeinsame Lebensräume
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Bare-shanked Screech-owl only
Schnee-Eule only
Schnee-Eule
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
Bare-shanked Screech-owl
Schnee-Eule
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
Bare-shanked Screech-owl
Schnee-Eule
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Erhaltungsstatus
Bare-shanked Screech-owl
Schnee-Eule
How to Tell Them Apart
Bare-shanked Screech-owl
Schnee-Eule
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
Bare-shanked Screech-owl
The Bare-shanked Screech-owl is a medium-sized owl of the family Strigidae found in montane forests of Costa Rica and western Panama. Weighing about 155.8g with a wingspan of 36.2cm, it is characterized by its unfeathered tarsi. It is nocturnal and hunts insects, small vertebrates, and invertebrates in highland forest habitats.
Schnee-Eule
Die Schnee-Eule ist die schwerste Eule Nordamerikas und einer der charismatischsten Vögel der Arktis. Anders als die meisten Eulen ist sie größtenteils tagaktiv – bedingt durch das durchgehende Tageslicht der arktischen Sommer. Periodische Masseneinflüge der Schnee-Eule nach Süden hängen mit den Populationszyklen der Lemminge zusammen.