Barn Swallow vs Common Kingfisher
Hirundo rustica compared with Alcedo atthis
Side-by-Side Comparison
| Attribute | Barn Swallow | Common Kingfisher |
|---|---|---|
| Scientific Name | Hirundo rustica | Alcedo atthis |
| Order | Passeriformes | Coraciiformes |
| Family | Hirundinidae | Alcedinidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 19.0 cm (7.5 in) | 17.0 cm (6.7 in) |
| Wingspan | 33.0 cm (13.0 in) | 25.0 cm (9.8 in) |
| Weight | 19.0 g (0.67 oz) | 36.0 g (1.27 oz) |
| Diet | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … | Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst … |
| Clutch Size | 2-7 | 3-10 |
| 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.
Common Kingfisher
Clear, slow-flowing rivers, streams, lakes, and ponds with suitable perching and nesting banks. Requires clean water with good fish populations.
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.
Common Kingfisher
A sharp, penetrating 'chee' whistle given in flight, often the first indication of its presence. Short, shrill single note as it darts low over rivers. Contact call is a rippling …
Geographic Range & Migration
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
Common Kingfisher
Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.
Conservation Status
Barn Swallow
Common Kingfisher
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
Common Kingfisher
Brilliant electric blue upperparts and orange underparts. Blue-green crown with darker barring. White throat patch and cheek spots. A flash of blue in flight.
Long, straight, dagger-like dark bill — orange base on the lower mandible in females
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.
Common Kingfisher
The common kingfisher is a dazzling jewel of waterways, its iridescent blue plumage caused by light refraction in the feather structure rather than pigment. These birds inspired the design of the Shinkansen bullet train in Japan — the shape of their bill was copied to reduce sonic booms when trains exit tunnels.