Least Auklet vs Razorbill
Aethia pusilla compared with Alca torda
Side-by-Side Comparison
| Attribute | Least Auklet | Razorbill |
|---|---|---|
| Scientific Name | Aethia pusilla | Alca torda |
| Order | Charadriiformes | Charadriiformes |
| Family | Alcidae | Alcidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 18.9 cm (7.4 in) | 41.9 cm (16.5 in) |
| Weight | 84.33333333333333 g (2.97 oz) | 646.6666666666666 g (22.81 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Least Auklet
Least Concern
Razorbill
About These Birds
Least Auklet
Least Auklet, 15–16 cm, is the smallest auk, breeding in immense colonies (millions) on rocky Aleutian and Bering Sea islands. Dark above, streaked white below; a tiny white plume above the eye. Planktivore; sieves copepods and euphausiids at sea. Makes loud buzzing display choruses at colony.
Razorbill
Razorbill, 37–39 cm, is an Atlantic alcid with a deep, laterally compressed bill crossed by a white vertical bar. Breeds on Atlantic cliff colonies from Maine to Greenland and Iceland to Norway; winters at sea. Dives to over 100 m pursuing fish. Strongly monogamous; pairs reunite annually at colonies.