Aves > Charadriiformes > Alcidae > Ptychoramphus > Ptychoramphus aleuticus

species: Ptychoramphus aleuticus (Cassin's Auklet, Starique de Cassin)

Compare AOU treatments of Ptychoramphus aleuticus, in Avibase (1886 to present).

Search for Ptychoramphus aleuticus at Cornell Birds of North America.