Common Kingfisher vs Eastern Bluebird
Alcedo atthis 比較対象 Sialia sialis
Side-by-Side Comparison
| 属性 | Common Kingfisher | Eastern Bluebird |
|---|---|---|
| 学名 | Alcedo atthis | Sialia sialis |
| 目 | Coraciiformes | Passeriformes |
| 科 | Alcedinidae | Turdidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 17.0 cm (6.7 in) | 17.5 cm (6.9 in) |
| 翼開長 | 25.0 cm (9.8 in) | 27.0 cm (10.6 in) |
| 体重 | 36.0 g (1.27 oz) | 31.0 g (1.09 oz) |
| 食性 | Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst … | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … |
| 一腹卵数 | 3-10 | 4-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Common Kingfisher
Clear, slow-flowing rivers, streams, lakes, and ponds with suitable perching and nesting banks. Requires clean water with good fish populations.
Eastern Bluebird
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Song & Call Comparison
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 …
Eastern Bluebird
A rich, melodious warbled 'chur-wi, tur-a-lee' song. Both sexes sing. Call is a soft, musical 'turee'. Song is gentle and flute-like, suggesting a small thrush. Given from exposed perch.
Geographic Range & Migration
Common Kingfisher
Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
保全状況
Common Kingfisher
Eastern Bluebird
How to Tell Them Apart
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
Eastern Bluebird
Males are vivid royal blue above with a rusty-red breast and white belly. Females are grey-blue with a paler rust breast.
Short, thin, dark bill
Key Differences
- • Weight: Common Kingfisher (36g) vs Eastern Bluebird (31g)
- • Length: Common Kingfisher (17 cm) vs Eastern Bluebird (17.5 cm)
- • Wingspan: Common Kingfisher (25 cm) vs Eastern Bluebird (27 cm)
- • Family: Common Kingfisher (Alcedinidae) vs Eastern Bluebird (Turdidae)
- • Habitat: Common Kingfisher prefers Clear, slow-flowing rivers, streams, lakes, and ponds with s; Eastern Bluebird prefers Open woodland, farmland edges, orchards, and parks with scat
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。
Eastern Bluebird
北米に生息するヒタキで、青い上面とオレンジ色の胸を持つ。巣箱の設置プログラムにより個体数が回復した。