Búteo-de-cauda-vermelha vs Snowy Owl
Buteo jamaicensis comparado com Bubo scandiacus
Side-by-Side Comparison
| Atributo | Búteo-de-cauda-vermelha | Snowy Owl |
|---|---|---|
| Nome científico | Buteo jamaicensis | Bubo scandiacus |
| Ordem | Accipitriformes | Strigiformes |
| Família | Accipitridae | Strigidae |
| Estado de conservação | Least Concern | Vulnerable |
| Comprimento | 53,0 cm (20.9 in) | 63,0 cm (24.8 in) |
| Envergadura | 124,0 cm (48.8 in) | 145,0 cm (57.1 in) |
| Peso | 1080,0 g (38.10 oz) | 2100,0 g (74.08 oz) |
| Dieta | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … |
| Tamanho da postura | 2-4 | 3-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partilhados
Snowy Owl only
Nenhum
Búteo-de-cauda-vermelha
Open country with scattered elevated perches such as trees, poles, and cliffs. Adaptable to farmland, grasslands, roadsides, and suburban areas.
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
Búteo-de-cauda-vermelha
Iconic, raspy descending scream: 'kreeeeee-ar', often used in films for all raptors. Gives short barking 'kak' notes near nest. Juveniles beg with persistent squealing whistles.
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
Búteo-de-cauda-vermelha
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Estado de conservação
Búteo-de-cauda-vermelha
Snowy Owl
How to Tell Them Apart
Búteo-de-cauda-vermelha
Variable plumage from pale to dark morphs. Most adults have rich brown upperparts, a pale breast with a dark belly band, and the characteristic rufous-red tail.
Dark hooked bill with a yellow cere
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
Búteo-de-cauda-vermelha
The red-tailed hawk is the most widespread and common hawk in North America. Its screaming cry is so iconic that it is often dubbed over bald eagle footage in films and television. These adaptable raptors thrive in human-altered landscapes and are a familiar sight perched along highways.
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.