Snowy Owl vs Águia-rabalva
Bubo scandiacus comparado com Haliaeetus albicilla
Side-by-Side Comparison
| Atributo | Snowy Owl | Águia-rabalva |
|---|---|---|
| Nome científico | Bubo scandiacus | Haliaeetus albicilla |
| Ordem | Strigiformes | Accipitriformes |
| Família | Strigidae | Accipitridae |
| Estado de conservação | Vulnerable | Least Concern |
| Comprimento | 63,0 cm (24.8 in) | 84,0 cm (33.1 in) |
| Envergadura | 145,0 cm (57.1 in) | 225,0 cm (88.6 in) |
| Peso | 2100,0 g (74.08 oz) | 5200,0 g (183.42 oz) |
| Dieta | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … | Fish, waterfowl, and carrion. Often pirates food from other birds. Takes fish from the water … |
| Tamanho da postura | 3-14 | 1-3 |
| 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.
Águia-rabalva
Coastlines, large lakes, and rivers with mature trees or cliffs for nesting. Requires large undisturbed areas.
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.
Águia-rabalva
High-pitched, yelping 'klee-klee' and deep barking 'ra-ra-ra'. Less vocal than Bald Eagle but similar chattering quality. Gives gull-like wailing near nest in breeding season.
Geographic Range & Migration
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Águia-rabalva
Northern Europe and Asia from Greenland and Scandinavia to Japan. Reintroduced to Scotland and Ireland.
Estado de conservação
Snowy Owl
Águia-rabalva
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
Águia-rabalva
Brown body with a paler head in adults and a distinctive short white wedge-shaped tail. Massive broad wings in flight. Juveniles are darker overall.
Very large, heavy, pale yellow bill
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.
Águia-rabalva
The white-tailed eagle is Europe's largest eagle and the fourth-largest eagle in the world. Once extinct in Britain, it has been successfully reintroduced to Scotland and Ireland through conservation programs. These powerful raptors can live over 25 years and form lifelong pair bonds.