アカオノスリ vs Roseate Spoonbill
Buteo jamaicensis 比較対象 Platalea ajaja
Side-by-Side Comparison
| 属性 | アカオノスリ | Roseate Spoonbill |
|---|---|---|
| 学名 | Buteo jamaicensis | Platalea ajaja |
| 目 | Accipitriformes | Pelecaniformes |
| 科 | Accipitridae | Threskiornithidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 53.0 cm (20.9 in) | 81.0 cm (31.9 in) |
| 翼開長 | 124.0 cm (48.8 in) | 127.0 cm (50.0 in) |
| 体重 | 1080.0 g (38.10 oz) | 1500.0 g (52.91 oz) |
| 食性 | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … | Small fish, crustaceans, aquatic insects, and plant material filtered from shallow water by sweeping the … |
| 一腹卵数 | 2-4 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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.
Roseate Spoonbill
Shallow coastal lagoons, estuaries, mangroves, and freshwater marshes. Nests in colonies in trees and shrubs.
Song & Call Comparison
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.
Roseate Spoonbill
Low, grunting and guttural croaking sounds at nesting colonies. Generally quiet. Alarm calls are softer croaks. Vocalizations lack melodic quality; purely functional colony sounds.
Geographic Range & Migration
アカオノスリ
North America from Alaska to Panama, including the Caribbean. One of the most common raptors in North America.
Roseate Spoonbill
Southeastern United States, Caribbean, Mexico, Central America, and South America to Argentina.
保全状況
アカオノスリ
Roseate Spoonbill
How to Tell Them Apart
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
Roseate Spoonbill
Vivid pink body plumage with darker carmine on the wings. Bare greenish-grey head. White neck and back. Intensity of pink depends on diet.
Long, flat, spatulate greyish bill used for sweeping through shallow water
About These Birds
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.
Roseate Spoonbill
The roseate spoonbill is the only spoonbill species in the Americas and one of the most striking wading birds in the Western Hemisphere. Like flamingos, their pink color comes from carotenoid pigments in their crustacean prey. Nearly hunted to extinction for their plumes in the 19th century, they have recovered substantially.