Rufous-backed Dwarf-kingfisher vs Common Kingfisher
Ceyx rufidorsa 比較対象 Alcedo atthis
Side-by-Side Comparison
| 属性 | Rufous-backed Dwarf-kingfisher | Common Kingfisher |
|---|---|---|
| 学名 | Ceyx rufidorsa | Alcedo atthis |
| 目 | Coraciiformes | Coraciiformes |
| 科 | Alcedinidae | Alcedinidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 17.0 cm (6.7 in) |
| 翼開長 | — | 25.0 cm (9.8 in) |
| 体重 | 17.033333333333335 g (0.60 oz) | 36.0 g (1.27 oz) |
| 食性 | -- | Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst … |
| 一腹卵数 | 2-3 | 3-10 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
共通生息地
Rufous-backed Dwarf-kingfisher only
Common Kingfisher only
Common Kingfisher
Clear, slow-flowing rivers, streams, lakes, and ponds with suitable perching and nesting banks. Requires clean water with good fish populations.
Song & Call Comparison
Rufous-backed Dwarf-kingfisher
Common Kingfisher
A sharp, penetrating 'chee' whistle given in flight, often the first indication of its presence. Short, shrill single note as it darts low over rivers. Contact call is a rippling …
Geographic Range & Migration
Rufous-backed Dwarf-kingfisher
Common Kingfisher
Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.
保全状況
Rufous-backed Dwarf-kingfisher
Common Kingfisher
How to Tell Them Apart
Rufous-backed Dwarf-kingfisher
Common Kingfisher
Brilliant electric blue upperparts and orange underparts. Blue-green crown with darker barring. White throat patch and cheek spots. A flash of blue in flight.
Long, straight, dagger-like dark bill — orange base on the lower mandible in females
About These Birds
Common Kingfisher
カワセミ（Alcedo atthis）— ユーラシアおよびアフリカに広く分布する鮮やかな青橙色の鳥。川や池のほとりで魚を捕食する。