Eastern Bluebird vs Slaty-backed Thrush
Sialia sialis 对比 Geokichla schistacea
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Slaty-backed Thrush |
|---|---|---|
| 学名 | Sialia sialis | Geokichla schistacea |
| 目 | Passeriformes | Passeriformes |
| 科 | Turdidae | Turdidae |
| 保护状况 | Least Concern | Near Threatened |
| 体长 | 17.5 cm (6.9 in) | — |
| 翼展 | 27.0 cm (10.6 in) | 19.7 cm (7.8 in) |
| 体重 | 31.0 g (1.09 oz) | 49.5 g (1.75 oz) |
| 食性 | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … | -- |
| 产卵数 | 4-5 | -- |
| Population Trend | — | — |
Size Comparison
Body Length
Eastern Bluebird
17.5 cm
Slaty-backed Thrush
—
翼展
Eastern Bluebird
27.0 cm
Slaty-backed Thrush
19.7 cm
体重
Eastern Bluebird
31.0 g
Slaty-backed Thrush
49.5 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
鸣唱
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.
Slaty-backed Thrush
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Slaty-backed Thrush
保护状况
Least Concern
Eastern Bluebird
Near Threatened
Slaty-backed 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.
喙
Short, thin, dark bill
Slaty-backed Thrush
About These Birds
Eastern Bluebird
北美幸福的象征。通过安装巢箱使种群得以恢复。冬季形成松散群体。