Atlantic Puffin vs Barn Swallow
Fratercula arctica compared with Hirundo rustica
Side-by-Side Comparison
| Attribute | Atlantic Puffin | Barn Swallow |
|---|---|---|
| Scientific Name | Fratercula arctica | Hirundo rustica |
| Order | Charadriiformes | Passeriformes |
| Family | Alcidae | Hirundinidae |
| Conservation Status | Vulnerable | Least Concern |
| Length | 30.0 cm (11.8 in) | 19.0 cm (7.5 in) |
| Wingspan | 56.0 cm (22.0 in) | 33.0 cm (13.0 in) |
| Weight | 380.0 g (13.40 oz) | 19.0 g (0.67 oz) |
| Diet | Small fish, especially sand eels, herring, and capelin. Dives underwater using wings for propulsion, catching … | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … |
| Clutch Size | 1 | 2-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Atlantic Puffin
Breeds on grassy cliff tops and offshore islands. Spends winter entirely at sea in the North Atlantic.
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
Atlantic Puffin
At burrow gives a low, moaning 'arr-arr-arr' growl. Silent at sea. At breeding colonies produces a series of grunting croaks. Chicks give soft peeping calls.
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.
Geographic Range & Migration
Atlantic Puffin
North Atlantic from eastern Canada and northeastern United States to Iceland, Norway, and northwest Russia.
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
Conservation Status
Atlantic Puffin
Barn Swallow
How to Tell Them Apart
Atlantic Puffin
Black upperparts and white underparts with a distinctive white face. In breeding season, the face brightens and colourful bill plates develop. Winter plumage is duller with a darker face.
Large, laterally compressed, triangular bill — bright orange, blue, and yellow in breeding season
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
About These Birds
Atlantic Puffin
The Atlantic puffin, often called the clown of the sea, is a charismatic seabird that nests in burrows on northern sea cliffs. Puffins can carry up to a dozen fish crosswise in their beaks at once thanks to backward-facing spines on their palate. Climate change and overfishing are threatening their food supply, leading to population declines.
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.