A small but rotund seabird with rounded head, very short neck, short, stubby wings, short but heavy bill, and very short tail.
Relative Size
Larger than a Red Phalarope, smaller than a Rhinoceros Auklet.
![Relative Size](/guide/images/size/scale.png)
![robin sized](/guide/images/size/robin-sized.png)
Measurements- Both Sexes
- Length: 9.1 in (23 cm)
- Weight: 5.3-7.0 oz (150-200 g)
- Length: 9.1 in (23 cm)
- Weight: 5.3-7.0 oz (150-200 g)