Red-crowned Crane vs Snowy Owl
Grus japonensis comparé à Bubo scandiacus
Side-by-Side Comparison
| Attribut | Red-crowned Crane | Snowy Owl |
|---|---|---|
| Nom scientifique | Grus japonensis | Bubo scandiacus |
| Ordre | Gruiformes | Strigiformes |
| Famille | Gruidae | Strigidae |
| Statut de conservation | Endangered | Vulnerable |
| Longueur | 150,0 cm (59.1 in) | 63,0 cm (24.8 in) |
| Envergure | 250,0 cm (98.4 in) | 145,0 cm (57.1 in) |
| Poids | 8900,0 g (313.94 oz) | 2100,0 g (74.08 oz) |
| Régime alimentaire | Omnivorous — fish, amphibians, insects, grasses, and waste grain. Forages in wetlands and agricultural fields. | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| Taille de la couvée | 2 | 3-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Red-crowned Crane
Freshwater marshes, bogs, and wet grasslands for breeding. Winters in coastal mudflats, estuaries, and rice paddies.
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
Red-crowned Crane
Spectacular unison 'bugling' call: a clear, resonant, far-carrying trumpet 'kru-ru-ru' given by paired birds simultaneously. Among the most majestic bird calls in Asia.
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
Red-crowned Crane
Eastern Asia — breeds in northeastern China, southeastern Russia, and Hokkaido, Japan. Winters in Korea and eastern China.
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Statut de conservation
Red-crowned Crane
Snowy Owl
How to Tell Them Apart
Red-crowned Crane
White body plumage with black secondary flight feathers and throat. Bare red crown patch. Black face and neck. One of the most elegant crane species.
Long, straight, olive-green bill
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
Red-crowned Crane
The red-crowned crane is one of the rarest crane species and a potent symbol of longevity and fidelity in East Asian culture. Their elaborate unison call and dancing displays have inspired art and folklore for millennia. The resident population on Hokkaido, Japan, recovered from about 33 birds in 1952 to over 1,800 today.
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.