Snowy Owl vs Brown Wood-owl

Bubo scandiacus в сравнении с Strix leptogrammica

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Side-by-Side Comparison

Характеристика Snowy Owl Brown Wood-owl
Научное название Bubo scandiacus Strix leptogrammica
Отряд Strigiformes Strigiformes
Семейство Strigidae Strigidae
Охранный статус Vulnerable Least Concern
Длина 63,0 cm (24.8 in)
Размах крыльев 145,0 cm (57.1 in) 62,6 cm (24.6 in)
Масса 2100,0 g (74.08 oz) 923,3333333333334 g (32.57 oz)
Питание Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … --
Размер кладки 3-14 1-2
Population Trend
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Size Comparison

Body Length
Snowy Owl 63,0 cm
Brown Wood-owl
Размах крыльев
Snowy Owl 145,0 cm
Brown Wood-owl 62,6 cm
Масса
Snowy Owl 2100,0 g
Brown Wood-owl 923,3333333333334 g
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Habitat Comparison

Общие среды обитания

Нет

Snowy Owl only

Brown Wood-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

Snowy Owl

Пение

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.

Brown Wood-owl

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Geographic Range & Migration

Snowy Owl

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

Brown Wood-owl

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Охранный статус

Vulnerable

Snowy Owl

Least Concern

Brown Wood-owl

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How to Tell Them Apart

Snowy Owl

Оперение

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

Клюв

Dark hooked bill mostly hidden by dense facial feathering

Brown Wood-owl

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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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