Eastern Bluebird vs Eastern Slaty Thrush
Sialia sialis 比較対象 Turdus subalaris
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Eastern Slaty Thrush |
|---|---|---|
| 学名 | Sialia sialis | Turdus subalaris |
| 目 | Passeriformes | Passeriformes |
| 科 | Turdidae | Turdidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 17.5 cm (6.9 in) | — |
| 翼開長 | 27.0 cm (10.6 in) | 21.4 cm (8.4 in) |
| 体重 | 31.0 g (1.09 oz) | 50.5 g (1.78 oz) |
| 食性 | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … | -- |
| 一腹卵数 | 4-5 | 2-4 |
| Population Trend | — | — |
Size Comparison
Body Length
Eastern Bluebird
17.5 cm
Eastern Slaty Thrush
—
翼開長
Eastern Bluebird
27.0 cm
Eastern Slaty Thrush
21.4 cm
体重
Eastern Bluebird
31.0 g
Eastern Slaty Thrush
50.5 g
Habitat Comparison
Eastern Bluebird
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Song & Call Comparison
Eastern Bluebird
さえずり
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.
Eastern Slaty Thrush
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Eastern Slaty Thrush
保全状況
Least Concern
Eastern Bluebird
Least Concern
Eastern Slaty Thrush
How to Tell Them Apart
Eastern Bluebird
羽毛
Males are vivid royal blue above with a rusty-red breast and white belly. Females are grey-blue with a paler rust breast.
くちばし
Short, thin, dark bill
Eastern Slaty Thrush
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。