Eastern Bluebird vs Red-tailed Ant-thrush
Sialia sialis 比較対象 Neocossyphus rufus
Side-by-Side Comparison
| 属性 | Eastern Bluebird | Red-tailed Ant-thrush |
|---|---|---|
| 学名 | Sialia sialis | Neocossyphus rufus |
| 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) | 21.2 cm (8.3 in) |
| 体重 | 31.0 g (1.09 oz) | 66.5 g (2.35 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 |
| Population Trend | — | — |
Size Comparison
Body Length
Eastern Bluebird
17.5 cm
Red-tailed Ant-thrush
—
翼開長
Eastern Bluebird
27.0 cm
Red-tailed Ant-thrush
21.2 cm
体重
Eastern Bluebird
31.0 g
Red-tailed Ant-thrush
66.5 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.
Red-tailed Ant-thrush
Geographic Range & Migration
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
Red-tailed Ant-thrush
保全状況
Least Concern
Eastern Bluebird
Least Concern
Red-tailed Ant-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
Red-tailed Ant-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。