- ORDER: Charadriiformes
- FAMILY: Alcidae
A small, dark, gregarious seabird, the Cassin's Auklet can be found feeding in flocks and nesting in colonies from Alaska to Mexico.More ID Info
- Mérgulo Sombrío (Spanish)
- Starique de Cassin (French)
- Cool Facts
- The Cassin's Auklet is the only alcid known to produce two broods in a single breeding season, at least in the southern part of the range where birds may be seen at nesting colonies every month of the year.
- Vulnerable to predators, especially large gulls, the Cassin's Auklet tends to visit its nest at night.
- The oldest recorded Cassin's Auklet was at least 16 years, 2 months old when it was found in California in 1993. It had been banded in the same state in 1978.