Barn Swallow vs Dusky Crag Martin
Hirundo rustica เปรียบเทียบกับ Ptyonoprogne concolor
Side-by-Side Comparison
| คุณสมบัติ | Barn Swallow | Dusky Crag Martin |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Hirundo rustica | Ptyonoprogne concolor |
| อันดับ | Passeriformes | Passeriformes |
| วงศ์ตระกูล | Hirundinidae | Hirundinidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 19.0 cm (7.5 in) | — |
| กว้างปีก | 33.0 cm (13.0 in) | 21.4 cm (8.4 in) |
| น้ำหนัก | 19.0 g (0.67 oz) | 13.0 g (0.46 oz) |
| อาหาร | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … | -- |
| จำนวนไข่ | 2-7 | 2-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Barn Swallow only
Dusky Crag Martin only
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Barn Swallow
Open farmland, meadows, and areas near water. Nests almost exclusively in human-made structures such as barns, bridges, and eaves.
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.
Dusky Crag Martin
Geographic Range & Migration
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
Dusky Crag Martin
สถานะการอนุรักษ์
Barn Swallow
Dusky Crag Martin
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
Dusky Crag Martin
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.