Barn Swallow vs 白尾海雕
Hirundo rustica 对比 Haliaeetus albicilla
Side-by-Side Comparison
| 属性 | Barn Swallow | 白尾海雕 |
|---|---|---|
| 学名 | Hirundo rustica | Haliaeetus albicilla |
| 目 | Passeriformes | Accipitriformes |
| 科 | Hirundinidae | Accipitridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 19.0 cm (7.5 in) | 84.0 cm (33.1 in) |
| 翼展 | 33.0 cm (13.0 in) | 225.0 cm (88.6 in) |
| 体重 | 19.0 g (0.67 oz) | 5200.0 g (183.42 oz) |
| 食性 | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … | Fish, waterfowl, and carrion. Often pirates food from other birds. Takes fish from the water … |
| 产卵数 | 2-7 | 1-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Barn Swallow
Open farmland, meadows, and areas near water. Nests almost exclusively in human-made structures such as barns, bridges, and eaves.
白尾海雕
Coastlines, large lakes, and rivers with mature trees or cliffs for nesting. Requires large undisturbed areas.
Song & Call Comparison
Barn Swallow
A rapid, twittering song: a long stream of 'vit-vit-vit' and rolling chirps. Also gives a sharp 'vit' flight call. Song can last many minutes without pause. Musical and liquid.
白尾海雕
High-pitched, yelping 'klee-klee' and deep barking 'ra-ra-ra'. Less vocal than Bald Eagle but similar chattering quality. Gives gull-like wailing near nest in breeding season.
Geographic Range & Migration
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
白尾海雕
Northern Europe and Asia from Greenland and Scandinavia to Japan. Reintroduced to Scotland and Ireland.
保护状况
Barn Swallow
白尾海雕
How to Tell Them Apart
Barn Swallow
Metallic blue-black upperparts, rufous forehead and throat, and pale buff to rufous underparts. Deeply forked tail with elongated outer streamers.
Short, wide, flat black bill adapted for catching insects in flight
白尾海雕
Brown body with a paler head in adults and a distinctive short white wedge-shaped tail. Massive broad wings in flight. Juveniles are darker overall.
Very large, heavy, pale yellow bill
About These Birds
Barn Swallow
The barn swallow is the most widespread swallow species in the world and has one of the longest migrations of any passerine. Its arrival signals spring across the Northern Hemisphere, inspiring cultural references from ancient Greece to modern poetry. Barn swallows have become almost entirely dependent on human structures for nesting.
白尾海雕
The white-tailed eagle is Europe's largest eagle and the fourth-largest eagle in the world. Once extinct in Britain, it has been successfully reintroduced to Scotland and Ireland through conservation programs. These powerful raptors can live over 25 years and form lifelong pair bonds.