Eastern Bluebird vs Usambara Thrush
Sialia sialis 对比 Turdus roehli
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Usambara Thrush |
|---|---|---|
| 学名 | Sialia sialis | Turdus roehli |
| 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) | 21.9 cm (8.6 in) |
| 体重 | 31.0 g (1.09 oz) | 71.0 g (2.50 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
Usambara Thrush
—
翼展
Eastern Bluebird
27.0 cm
Usambara Thrush
21.9 cm
体重
Eastern Bluebird
31.0 g
Usambara Thrush
71.0 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.
Usambara Thrush
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Usambara Thrush
保护状况
Least Concern
Eastern Bluebird
Near Threatened
Usambara 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
Usambara 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。