How big is a Cassin's Auklet?

The Cassin's Auklet is a medium sized bird weighing about 184 g.

Where can you see a Cassin's Auklet?

The Cassin's Auklet occurs in 3 countries, including the United States, Canada and Mexico.

What birds look similar to a Cassin's Auklet?

The Cassin's Auklet is most easily confused with the Little Auk, the Tufted Puffin and the Marbled Murrelet.

Is the Cassin's Auklet endangered?

The Cassin's Auklet is listed as Near Threatened on the IUCN Red List.

Cassin's Auklet

Ptychoramphus aleuticus

Auks, Puffins, and Murres · Charadriiformes · Uncommon

The Cassin's Auklet (Ptychoramphus aleuticus) is a uncommon auks, puffins, and murr found in 3 countries, weighing about 184 g. Cassin's auklet is a small, chunky seabird that ranges widely in the North Pacific.

Near ThreatenedUncommonEats invertebratesmarinecavity nest184 g

Cassin's Auklet (Ptychoramphus aleuticus), photo 1 — Photo: Caleb Putnam · CC BY 2.0

Cassin's Auklet (Ptychoramphus aleuticus), photo 2 — Photo: Caleb Putnam · CC BY 2.0

Cassin's Auklet (Ptychoramphus aleuticus), photo 3 — Photo: Caleb Putnam · CC BY 2.0

Cassin's Auklet (Ptychoramphus aleuticus), photo 4 — Photo: Melissa McMasters from Memphis, TN, United States · CC BY 2.0

Cassin's Auklet (Ptychoramphus aleuticus), photo 5 — Photo: William Leon Dawson · Public domain

Cassin's Auklet (Ptychoramphus aleuticus), photo 6 — Photo: USFWSAlaska · Public domain

Cassin's Auklet (Ptychoramphus aleuticus), photo 7 — Photo: Bell, John Graham.; Chapman, Frank M.; Jasper, Theodore.; Natural science association of America (New York, N.Y.); Studer, Jacob Henry; Studer, Jacob Henry; Studer, Jacob Henry; Studer, Jacob Henry · Public domain

Cassin's Auklet (Ptychoramphus aleuticus), photo 8 — Photo: Department of the Interior. U.S. Fish and Wildlife Service. National Conservation Training Center. 10/1997-8888 · Public domain

Cassin's Auklet (Ptychoramphus aleuticus), photo 9 — Photo: Department of the Interior. U.S. Fish and Wildlife Service. National Conservation Training Center. 10/1997-8888 · Public domain

Cassin's Auklet (Ptychoramphus aleuticus), photo 10 — Photo: Department of the Interior. U.S. Fish and Wildlife Service. National Conservation Training Center. 10/1997-8888 · Public domain

About the Cassin's Auklet

Cassin's auklet is a small, chunky seabird that ranges widely in the North Pacific. It is the only species placed in the genus Ptychoramphus. It nests in small burrows and because of its presence on well studied islands in British Columbia and off California it is one of the better known auks. It is named for the American ornithologist John Cassin.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Where it lives

United States Canada Mexico

When to see it

Best months: April, May, June, July, August, September, October, November, December, with peak activity in September. It is a variable species across most of its range.

Easily confused with

Quick questions

What does a Cassin's Auklet look like?: Cassin's auklet is a small, chunky seabird that ranges widely in the North Pacific.
How big is a Cassin's Auklet?: The Cassin's Auklet is a medium sized bird weighing about 184 g.
Where can you see a Cassin's Auklet?: The Cassin's Auklet occurs in 3 countries, including the United States, Canada and Mexico.
What birds look similar to a Cassin's Auklet?: The Cassin's Auklet is most easily confused with the Little Auk, the Tufted Puffin and the Marbled Murrelet.
Is the Cassin's Auklet endangered?: The Cassin's Auklet is listed as Near Threatened on the IUCN Red List.

Learn the Cassin's Auklet for real

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