Eastern Bluebird vs Northern Cardinal
Sialia sialis 比較対象 Cardinalis cardinalis
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Northern Cardinal |
|---|---|---|
| 学名 | Sialia sialis | Cardinalis cardinalis |
| 目 | Passeriformes | Passeriformes |
| 科 | Turdidae | Cardinalidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 17.5 cm (6.9 in) | 22.0 cm (8.7 in) |
| 翼開長 | 27.0 cm (10.6 in) | 30.0 cm (11.8 in) |
| 体重 | 31.0 g (1.09 oz) | 44.0 g (1.55 oz) |
| 食性 | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … | Seeds, grains, fruits, and insects. Especially fond of sunflower seeds at bird feeders. Feeds mainly … |
| 一腹卵数 | 4-5 | 1-5 |
| 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.
Northern Cardinal
Woodland edges, thickets, gardens, and suburban areas. Prefers dense shrubby habitats for nesting.
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.
Northern Cardinal
Loud, clear whistled phrases: 'cheer-cheer-cheer' and 'birdy-birdy-birdy'. Both male and female sing; female song is softer. Alarm is a sharp metallic 'chink'.
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Northern Cardinal
Eastern and central North America from southern Canada to Mexico and Guatemala. Expanding range northward.
保全状況
Eastern Bluebird
Northern Cardinal
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
Northern Cardinal
Males are brilliant crimson red overall with a black face mask. Females are warm buffy brown with reddish tinges on wings, crest, and tail.
Thick, conical, bright orange-red 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。
Northern Cardinal
The northern cardinal is the state bird of seven US states, more than any other species. Unlike many songbirds, both males and females sing, often in duets. Cardinals do not migrate and their brilliant red plumage against winter snow makes them a favorite among backyard birdwatchers.