Barn Swallow vs Bahama Swallow
Hirundo rustica เปรียบเทียบกับ Tachycineta cyaneoviridis
Side-by-Side Comparison
| คุณสมบัติ | Barn Swallow | Bahama Swallow |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Hirundo rustica | Tachycineta cyaneoviridis |
| อันดับ | Passeriformes | Passeriformes |
| วงศ์ตระกูล | Hirundinidae | Hirundinidae |
| สถานะการอนุรักษ์ | Least Concern | Endangered |
| ความยาว | 19.0 cm (7.5 in) | — |
| กว้างปีก | 33.0 cm (13.0 in) | 22.5 cm (8.9 in) |
| น้ำหนัก | 19.0 g (0.67 oz) | 17.63333333333333 g (0.62 oz) |
| อาหาร | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … | -- |
| จำนวนไข่ | 2-7 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Barn Swallow only
Bahama Swallow only
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.
Bahama Swallow
Geographic Range & Migration
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
Bahama Swallow
สถานะการอนุรักษ์
Barn Swallow
Bahama Swallow
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
Bahama Swallow
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.
Bahama Swallow
The Bahama Swallow is an Endangered swallow endemic to the Bahamas, weighing about 17.6g with a wingspan of 22.5cm. It has iridescent blue-green upperparts and white underparts, and breeds in pine woodlands. Habitat loss and introduced predators threaten its small and declining population.