Atlantic Puffin vs Little Auk

In short

The Atlantic Puffin and Little Auk are both small seabirds, but they differ in size and bill structure. The Atlantic Puffin is larger with a distinctive, colorful bill, while the Little Auk is smaller with a more subdued, black bill. Both species are found in northern oceanic regions, but their breeding habitats and behaviors vary.

Identification tips

1. Size and Bill: Look for the larger size and colorful bill of the Atlantic Puffin. 2. Plumage: Note the puffin's bright bill and orange legs versus the Little Auk's more uniform black and white plumage. 3. Habitat: Consider the location; puffins prefer offshore islands, while Little Auks are found in Arctic regions. 4. Behavior: Observe flock behavior; Little Auks often form large flocks, while puffins are more solitary or in smaller groups.

Size

The Atlantic Puffin is noticeably larger than the Little Auk. The puffin has a more robust body and a larger wingspan.

Plumage

The Atlantic Puffin has a striking appearance with a black back, white underparts, and a large, colorful bill with orange, yellow, and blue hues. In contrast, the Little Auk is more uniformly black and white, with a smaller, all-black bill.

Behaviour

Both species are agile divers, but the Atlantic Puffin is known for its clumsy movements on land. The Little Auk is more adept at flying and is often seen in large flocks.

Habitat

The Atlantic Puffin breeds on offshore islands, often in burrows or rocky crevices, while the Little Auk breeds in Arctic regions, typically nesting in scree slopes or rocky cliffs.

Voice

The Atlantic Puffin is generally quieter, with low growling calls, whereas the Little Auk is more vocal, especially at breeding colonies.