アカオノスリ vs Shoebill
Buteo jamaicensis 比較対象 Balaeniceps rex
Side-by-Side Comparison
| 属性 | アカオノスリ | Shoebill |
|---|---|---|
| 学名 | Buteo jamaicensis | Balaeniceps rex |
| 目 | Accipitriformes | Pelecaniformes |
| 科 | Accipitridae | Balaenicipitidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | 53.0 cm (20.9 in) | 120.0 cm (47.2 in) |
| 翼開長 | 124.0 cm (48.8 in) | 240.0 cm (94.5 in) |
| 体重 | 1080.0 g (38.10 oz) | 5500.0 g (194.01 oz) |
| 食性 | Small to medium mammals, especially voles, mice, and rabbits. Also takes birds, reptiles, and large … | Primarily lungfish, also catfish, water snakes, monitor lizards, and baby crocodiles. Hunts by standing motionless, … |
| 一腹卵数 | 2-4 | 1-3 |
| 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.
Shoebill
Freshwater swamps dominated by papyrus and other dense aquatic vegetation in tropical East Africa.
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.
Shoebill
Largely silent; produces mechanical bill-clattering 'clap-clap-clap' when greeting at the nest — similar to White Stork. Also gives low croaking grunts. Rarely calls in the wild.
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.
Shoebill
Central and East Africa from South Sudan and Ethiopia south to Zambia. Largest populations in South Sudan and Uganda.
保全状況
アカオノスリ
Shoebill
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
Shoebill
Blue-grey plumage overall with a slightly darker back and wings. Powder down gives a washed-out appearance. Small tuft on the back of the head.
Massive shoe-shaped bill, one of the largest of any bird — pale yellowish-grey with darker markings
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.
Shoebill
The shoebill is one of the most sought-after birds for birdwatchers visiting Africa, prized for its prehistoric appearance and massive bill. It can stand motionless for hours before collapsing forward to seize prey in its enormous bill. Despite standing over a meter tall, shoebills weigh relatively little due to their hollow bones.