Great Cormorant vs アカオノスリ
Phalacrocorax carbo 比較対象 Buteo jamaicensis
Side-by-Side Comparison
| 属性 | Great Cormorant | アカオノスリ |
|---|---|---|
| 学名 | Phalacrocorax carbo | Buteo jamaicensis |
| 目 | Suliformes | Accipitriformes |
| 科 | Phalacrocoracidae | Accipitridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 90.0 cm (35.4 in) | 53.0 cm (20.9 in) |
| 翼開長 | 145.0 cm (57.1 in) | 124.0 cm (48.8 in) |
| 体重 | 2600.0 g (91.71 oz) | 1080.0 g (38.10 oz) |
| 食性 | Fish caught by diving from the surface. Pursues prey underwater using powerful feet for propulsion. … | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … |
| 一腹卵数 | 1-7 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Great Cormorant
Coasts, estuaries, lakes, rivers, and reservoirs. Nests in colonies in trees, on cliffs, or on the ground.
アカオノスリ
Open country with scattered elevated perches such as trees, poles, and cliffs. Adaptable to farmland, grasslands, roadsides, and suburban areas.
Song & Call Comparison
Great Cormorant
Deep, guttural grunts and 'karrr' calls at colonies. Bill-clicking and hissing in threat displays. Silent at sea. Colonial noise can be deafening during the breeding season.
アカオノスリ
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.
Geographic Range & Migration
Great Cormorant
Very wide range across Europe, Asia, Africa, and Australasia. One of the most widespread cormorant species.
アカオノスリ
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
保全状況
Great Cormorant
アカオノスリ
How to Tell Them Apart
Great Cormorant
All black with a bronze-green gloss. White throat patch and white thigh patches in breeding season. Yellow-orange face patch around the bill base.
Long, hooked, dark bill with a yellow gape
アカオノスリ
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
About These Birds
Great Cormorant
The great cormorant is one of the most widespread seabirds in the world. Unlike most waterbirds, cormorants lack fully waterproof plumage, leading to the iconic pose of standing with wings spread open to dry. In Asia, cormorants have been used by fishermen to catch fish for over a thousand years.
アカオノスリ
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.