Cassin's Auklet (Ptychoramphus aleuticus)
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Cassin's Auklet

Ptychoramphus aleuticus (Pallas, 1811)

184 gWeight

Cassin's auklet (Ptychoramphus aleuticus) is a small, chunky seabird that ranges widely in the North Pacific.

Busiest months: November · Most records: United States, Canada, Mexico

Near Threatened

Where and when it's recorded

Cassin's Auklet has been recorded at 29 of the 8,171 birding hotspots we track, in 3 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Southeast Farallon IslandUnited States12,081 records
  2. Pt. Pinos – seawatch onlyUnited States2,680 records
  3. Pt. PinosUnited States149 records
More places
  1. Discovery ParkUnited States70 records
  2. Clover PointCanada62 records
  3. Rocky Point Bird ObservatoryCanada61 records
  4. Pillar Point HarborUnited States57 records
  5. Neah Bay – town and bay onlyUnited States36 records
  6. Point No PointUnited States34 records
  7. Bodega Bay – harbor and immediate vicinityUnited States19 records

Countries and regions with the most records

United StatesCanadaMexico

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

Cassin's auklet (Ptychoramphus aleuticus) 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.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Cassin's Auklet?

The Cassin's Auklet weighs around 184 g.

Where does the Cassin's Auklet live?

Its breeding range: North America, Middle America: eastern North Pacific coastal islands. It is most often recorded in United States, Canada and Mexico.

When is the best time to see the Cassin's Auklet?

At the hotspots we track, it is recorded most in November (Northern Hemisphere).

Is the Cassin's Auklet endangered?

The IUCN Red List classifies the Cassin's Auklet as Near Threatened.

What does the Cassin's Auklet eat?

Main food: Fish, shrimp & shellfish.

What family is the Cassin's Auklet in?

It belongs to the family Auks (Alcidae), order Charadriiformes.

At a glance

Weight
184 g
Habitat
Ocean
Diet
Fish, shrimp & shellfish
Lifestyle
On the water surface
Migration
Migratory
Conservation
Near Threatened
More measurements
Wing
121 mm
Tail
32 mm
Bill
24 mm
Tarsus
24 mm

Averages from the AVONET dataset; length from field guides where available.

Range

North America, Middle America: eastern North Pacific coastal islands

Breeding range, IOC World Bird List 15.2

Classification

Family
Auks Alcidae
Genus
Ptychoramphus

More from the family Auks

Cassin's Auklet

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by Oscar Johnson. ↗

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