Birdr
  • Today
  • Life List
  • Community
Sign in
  • Today
  • Life List
  • Map
  • Trip Planner
  • Community
  • Field Guide
  • Skills
  • Gear Guides
  • Merch
Sign in
Made for birdrs, by birdrs  ·  Birdr ·  v0.1
Field GuideBlogAboutGear GuidesTrip PlannerCommunityBirdr ProPrivacy PolicyTermsSupport
Back to Field Guide
Cassin's Auklet

Cassin's Auklet

Ptychoramphus aleuticus

Migration Flyway

Showing primary migration corridor(s) for this species

Last Spotted Near You

View on eBirdWikipedia

About the Cassin's Auklet

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. It is named for the American ornithologist John Cassin. Cassin's auklet is a small (25 cm, 200 g) nondescript auk. Its plumage is generally dark above and pale below, with a small white mark above the eye. Its bill is overall dark with a pale spot, and its feet are blue. Unlike many other auks, Cassin's auklet lacks dramatic breeding plumage, remaining the same over most of the year.

Source: Wikipedia

Classification

Scientific name
Ptychoramphus aleuticus
Family
Auks, Murres, and Puffins
Order
Charadriiformes

Similar species

Other members of the auks, murres, and puffins family recorded in North America — a useful place to start if you are not certain of your identification.

  • Ancient Murrelet Synthliboramphus antiquus
  • Atlantic Puffin Fratercula arctica
  • Black Guillemot Cepphus grylle
  • Common Murre Uria aalge
  • Craveri's Murrelet Synthliboramphus craveri
  • Crested Auklet Aethia cristatella
  • Dovekie Alle alle
  • Guadalupe Murrelet Synthliboramphus hypoleucus
  • Horned Puffin Fratercula corniculata
  • Kittlitz's Murrelet Brachyramphus brevirostris
  • Least Auklet Aethia pusilla
  • Long-billed Murrelet Brachyramphus perdix

Know when the Cassin's Auklet turns up near you

Add it to your watchlist and draw an alert zone around the places you actually bird. Birdr checks eBird reports and tells you when one is seen inside it.

How rare bird alerts work →

Gear for spotting Cassin's Auklet

Optics

Best Binoculars for Beginners

You don't need to spend a fortune. These four pairs will get you birding confidently on day one.

8 min readRead guide
Cameras

Cameras for Bird Photography

From phone adapters to dedicated rigs, here's what actually works for capturing birds in the field.

12 min readRead guide
Optics

Spotting Scopes for Distance Birding

Essential for shorebirds, raptors, and anything too far for binoculars. Our tested picks.

9 min readRead guide