Belted Kingfisher vs Rock Pigeon
Megaceryle alcyon 比較対象 Columba livia
Side-by-Side Comparison
| 属性 | Belted Kingfisher | Rock Pigeon |
|---|---|---|
| 学名 | Megaceryle alcyon | Columba livia |
| 目 | Coraciiformes | Columbiformes |
| 科 | Alcedinidae | Columbidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 33.0 cm (13.0 in) | 33.0 cm (13.0 in) |
| 翼開長 | 53.0 cm (20.9 in) | 68.0 cm (26.8 in) |
| 体重 | 150.0 g (5.29 oz) | 300.0 g (10.58 oz) |
| 食性 | Primarily small fish caught by plunge-diving from a perch or hover. Also takes crayfish, frogs, … | Seeds, grain, fruit, and human food scraps. Primarily a ground feeder. Feral birds are heavily … |
| 一腹卵数 | 6-7 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Belted Kingfisher
Rivers, streams, lakes, ponds, estuaries, and coastlines with clear water and suitable perches. Nests in burrows dug into earthen banks.
Rock Pigeon
Originally cliff-nesting in Mediterranean regions. Now the quintessential urban bird, inhabiting cities worldwide on every continent.
Song & Call Comparison
Belted Kingfisher
A loud, rattling 'klee-klee-klee-klee' — mechanical and penetrating. Given in flight along rivers. Also a harsh 'kekekek' near nest. Far louder than Common Kingfisher.
Rock Pigeon
Soft, rhythmic cooing 'roo-c'too-coo' repeated multiple times, with emphasis on second syllable. Male courtship coo is deeper and more persistent. Wing-clapping on takeoff is loud.
Geographic Range & Migration
Belted Kingfisher
North America from Alaska and Canada to Central America and the Caribbean. Northern populations migrate south in winter.
Rock Pigeon
Native to Europe, North Africa, and South Asia. Feral populations on every continent except Antarctica.
保全状況
Belted Kingfisher
Rock Pigeon
How to Tell Them Apart
Belted Kingfisher
Blue-grey upperparts with a shaggy crest and a white collar. Males have a single blue-grey breast band; females have an additional rufous belly band.
Long, heavy, straight, dark dagger-like bill
Rock Pigeon
Wild-type has a blue-grey body with iridescent green and purple neck feathers, two black wing bars, and a white rump. Feral populations show enormous color variation.
Slender dark bill with a white fleshy cere at the base
About These Birds
Belted Kingfisher
ミヤマカワセミは雌の方が雄よりも派手な色彩を持つという点でユニークで、赤褐色の腹帯が余分に加わっている。これらの騒々しい鳥は独特のガラガラとした鳴き声で縄張りを宣言する。重厚な嘴を使って河岸に最大2.4mもの深さの営巣穴を掘る。
Rock Pigeon
The rock pigeon is the ancestor of all domestic pigeon breeds and one of the most abundant birds in cities worldwide. Pigeons have served humans as messengers, food, and subjects for scientific research — their homing ability and vision have been studied extensively. Darwin's study of pigeon breeding contributed to his theory of evolution.