Christmas Island Boobook vs Snowy Owl

Ninox natalis comparado con Bubo scandiacus

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Side-by-Side Comparison

Atributo Christmas Island Boobook Snowy Owl
Nombre científico Ninox natalis Bubo scandiacus
Orden Strigiformes Strigiformes
Familia Strigidae Strigidae
Estado de conservación Vulnerable Vulnerable
Longitud 63,0 cm (24.8 in)
Envergadura 38,0 cm (15.0 in) 145,0 cm (57.1 in)
Peso 172,5 g (6.08 oz) 2100,0 g (74.08 oz)
Dieta -- Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. …
Tamaño de la puesta 2 3-14
Population Trend
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Size Comparison

Body Length
Christmas Island Boobook
Snowy Owl 63,0 cm
Envergadura
Christmas Island Boobook 38,0 cm
Snowy Owl 145,0 cm
Peso
Christmas Island Boobook 172,5 g
Snowy Owl 2100,0 g
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Habitat Comparison

Hábitats compartidos

Ninguno

Christmas Island Boobook only

Snowy Owl only

Snowy Owl

Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.

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Song & Call Comparison

Christmas Island Boobook

Snowy Owl

Canto

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.

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Geographic Range & Migration

Christmas Island Boobook

Snowy Owl

Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.

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Estado de conservación

Vulnerable

Christmas Island Boobook

Vulnerable

Snowy Owl

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How to Tell Them Apart

Christmas Island Boobook

Snowy Owl

Plumaje

Adult males are almost entirely white. Females and immatures have dark brown barring and spotting. Yellow eyes and fully feathered feet.

Pico

Dark hooked bill mostly hidden by dense facial feathering

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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.

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Related Comparisons

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