A small, heavy-bodied seabird, scarcely larger than an American Robin, with a small bill and short neck. It has a short tail and short, narrow, pointed wings.
Slightly larger than a Cassin's Auklet, smaller than a Pigeon Guillemot.between robin and crow
- Both Sexes
- Length: 7.9-9.4 in (20-24 cm)
- Weight: 5.4-8.8 oz (153-250 g)
- Wingspan: 17.7-18.1 in (45-46 cm)