Eastern Bluebird vs Eurasian Magpie
Sialia sialis 比較対象 Pica pica
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Eurasian Magpie |
|---|---|---|
| 学名 | Sialia sialis | Pica pica |
| 目 | Passeriformes | Passeriformes |
| 科 | Turdidae | Corvidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 17.5 cm (6.9 in) | 46.0 cm (18.1 in) |
| 翼開長 | 27.0 cm (10.6 in) | 56.0 cm (22.0 in) |
| 体重 | 31.0 g (1.09 oz) | 220.0 g (7.76 oz) |
| 食性 | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … | Omnivorous — insects, grains, berries, carrion, eggs, and nestlings. Caches surplus food for later retrieval. |
| 一腹卵数 | 4-5 | 2-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eastern Bluebird
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Eurasian Magpie
Open woodland, farmland, hedgerows, parks, and gardens. Common in suburban and urban environments across Eurasia.
Song & Call Comparison
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.
Eurasian Magpie
A harsh, rapid chattering 'chach-chach-chach'. Also gives a variety of whistles and clucking notes. Known to mimic other birds and sounds. Very vocal in pairs.
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Eurasian Magpie
Europe, Asia, and northwest Africa. One of the most recognizable birds across the Palearctic region.
保全状況
Eastern Bluebird
Eurasian Magpie
How to Tell Them Apart
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
Eurasian Magpie
Bold black and white pattern with iridescent blue-green gloss on the wings and long graduated tail. White scapulars and flanks contrast with the black body.
Strong, straight black bill
About These Birds
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。
Eurasian Magpie
動物で初めて鏡像認識テストに合格した非哺乳類の鳥。高い知性を持つカラス科の鳥。