Biak Scops-owl vs Snowy Owl
Otus beccarii comparado com Bubo scandiacus
Side-by-Side Comparison
| Atributo | Biak Scops-owl | Snowy Owl |
|---|---|---|
| Nome científico | Otus beccarii | Bubo scandiacus |
| Ordem | Strigiformes | Strigiformes |
| Família | Strigidae | Strigidae |
| Estado de conservação | Near Threatened | Vulnerable |
| Comprimento | — | 63,0 cm (24.8 in) |
| Envergadura | 30,4 cm (12.0 in) | 145,0 cm (57.1 in) |
| Peso | 127,0 g (4.48 oz) | 2100,0 g (74.08 oz) |
| Dieta | -- | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| Tamanho da postura | -- | 3-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
Nenhum
Biak Scops-owl only
Snowy Owl only
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
Biak Scops-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
Biak Scops-owl
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Estado de conservação
Biak Scops-owl
Snowy Owl
How to Tell Them Apart
Biak Scops-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
Biak Scops-owl
The Biak Scops-owl is a near-threatened small owl endemic to Biak Island in West Papua, Indonesia. It has cryptic brown-mottled plumage with small ear tufts typical of scops-owls. It inhabits lowland and hill forests, hunting insects and small vertebrates at night, and its very restricted range makes it sensitive to habitat changes.
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.