Pigeon Guillemot (Cepphus columba) [XC420374]
by Don Henise from Sequim, Clallam County, Washington, United States (song, courtship display between pairs)
Pigeon Guillemot (Cepphus columba) [XC818941]
by Rachel Hudson from Budd Inlet, Thurston County, Washington, United States (alarm call, call)
Subspecies
Forms superspecies with Black Guillemot (Cepphus grylle). Subspecies snowi sometimes considered a megasubspecies.
The following 5 subspecies are recognised:
columba Pallas, 1811 - Kamchatka north to Bering Strait and western Alaska.
snowi Stejneger, 1897 - Kuril Is.
kaiurka Portenko, 1937 - Commander Is to west-central Aleutian Is.
adiantus Storer, 1950 - Central Aleutian Is south to Washington.