American Robin vs Eastern Bluebird
Turdus migratorius 对比 Sialia sialis
Side-by-Side Comparison
| 属性 | American Robin | Eastern Bluebird |
|---|---|---|
| 学名 | Turdus migratorius | Sialia sialis |
| 目 | Passeriformes | Passeriformes |
| 科 | Turdidae | Turdidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 25.0 cm (9.8 in) | 17.5 cm (6.9 in) |
| 翼展 | 36.0 cm (14.2 in) | 27.0 cm (10.6 in) |
| 体重 | 77.0 g (2.72 oz) | 31.0 g (1.09 oz) |
| 食性 | Earthworms, insects, and fruit. Famously hunts earthworms on lawns by running, stopping, and tilting its … | Insects in summer, berries in winter. Hunts from low perches, dropping to the ground to … |
| 产卵数 | 2-4 | 4-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Robin
Lawns, parks, gardens, farmland, and forest edges. One of the most familiar birds in suburban North America.
Eastern Bluebird
Open woodland, farmland edges, orchards, and parks with scattered trees and open ground. Readily uses nest boxes.
Song & Call Comparison
American Robin
A clear, caroling song of 2-3 note phrases: 'cheerily, cheer-up, cheerio'. Sings from dawn perches. Sharp 'tut-tut-tut' alarm call and thin 'seeee' flight note.
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.
Geographic Range & Migration
American Robin
North America from Alaska and Canada to Mexico. Northern populations migrate south in winter; southern populations are largely resident.
Eastern Bluebird
Eastern North America from southern Canada to Honduras and Nicaragua. Partially migratory.
保护状况
American Robin
Eastern Bluebird
How to Tell Them Apart
American Robin
Dark grey-brown upperparts with a warm brick-red breast and belly. White eye-ring and streaked white throat. Female slightly paler.
Bright yellow bill with a dark tip
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
Key Differences
- • Weight: American Robin (77g) vs Eastern Bluebird (31g)
- • Length: American Robin (25 cm) vs Eastern Bluebird (17.5 cm)
- • Wingspan: American Robin (36 cm) vs Eastern Bluebird (27 cm)
- • Habitat: American Robin prefers Lawns, parks, gardens, farmland, and forest edges. One of th; Eastern Bluebird prefers Open woodland, farmland edges, orchards, and parks with scat
About These Birds
American Robin
美洲鸫（学名Turdus migratorius）被广泛视为北美春天的使者。尽管名为"知更鸟"（robin），实为鸫科（Turdidae）成员，与欧洲知更鸟无近缘关系。雄鸟胸部橙红色，头部黑色，体长约25厘米。食蚯蚓和浆果，常见于草坪和公园。
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。