Rhinoceros Auklet

Cerorhinca monocerata

Rhinoceros Auklet (Cerorhinca monocerata) — Shorebirds, Gulls & Auks of Europe & Northern Asia.

Field guide · LocationsWhere to see this bird

Found across 18 guides in our atlas — open any for the full checklist, photos and what's around right now.

Regional checklists

Birds of Canada Birds of Japan Birds of Mexico Birds of the United States Birds of British Columbia Birds of Alaska Birds of California Birds of Oregon Birds of Washington

By family

Auks, Murres & Puffins of Canada Auks, Murres & Puffins of Japan Auks, Murres & Puffins of Mexico Auks, Murres & Puffins of the United States Auks, Murres & Puffins of British Columbia Auks, Murres & Puffins of Alaska Auks, Murres & Puffins of California Auks, Murres & Puffins of Oregon Auks, Murres & Puffins of Washington

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The Rhinoceros Auklet (Cerorhinca monocerata) is a member of the Alcidae family found in Europe & Northern Asia and North America. Adults weigh 482 g. The IUCN Red List lists it as Least Concern.

Conservation status

IUCN Red List

LC Least Concern

Widespread and abundant — not currently at risk.

Where it fits

Class Aves
Order Charadriiformes
Family Alcidae Auks
Genus Cerorhinca
Species monocerata

Where it lives

Temperate North Pacific coasts: off Sakhalin and Kuril Is. (southeastern Russia), Hokkaido and northern Honshu (northern Japan), Aleutian Is., southern, southeastern Alaska to southern California

Quick facts

Weight: 482 g
Diet: Aquatic hunters
Family: Alcidae
Order: Charadriiformes
Habitat: Wetland, lake & coast

How to identify

Similar birds

Vulnerable

Biology & behaviour

Diet

The Rhinoceros Auklet hunts aquatic prey such as fish and aquatic invertebrates.

Behaviour

A bird of open sea and coastal waters, it swims and feeds in and around water.

Migration

The Rhinoceros Auklet is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.

The Rhinoceros Auklet (Cerorhinca monocerata) is a species of bird in the Alcidae family, part of the order Charadriiformes. It is found across Europe & Northern Asia and North America. Its distribution covers PAL, NA temperate North Pacific coasts: off Sakhalin and Kuril Is. (se Russia), Hokkaido and n Honshu (n Japan), Aleutian Is., s, se Alaska to s California.

It is a large bird. Adults weighs around 482 g, with a wing length of about 17.9 cm and a tail of around 5.1 cm.

The IUCN Red List currently assesses it as Least Concern. That category covers species that remain widespread and reasonably abundant in the wild.

Its mapped global range covers an estimated 316,000 km².

Frequently asked questions

How big is the Rhinoceros Auklet?

The Rhinoceros Auklet is a large bird that weighs around 482 g.

Where does the Rhinoceros Auklet live?

The Rhinoceros Auklet is found across Europe & Northern Asia and North America with a range covering PAL, NA temperate North Pacific coasts: off Sakhalin and Kuril Is. (se Russia), Hokkaido and n Honshu (n Japan), Aleutian Is., s, se Alaska to s California, where it is associated with wetlands, lakes and other open water.

What family does the Rhinoceros Auklet belong to?

The Rhinoceros Auklet (Cerorhinca monocerata) belongs to the Alcidae family, in the order Charadriiformes.

What does the Rhinoceros Auklet eat?

The Rhinoceros Auklet hunts aquatic prey such as fish and aquatic invertebrates.

Does the Rhinoceros Auklet migrate?

The Rhinoceros Auklet is migratory, making regular seasonal journeys between its breeding and non-breeding ranges.

Is the Rhinoceros Auklet endangered?

The IUCN Red List currently assesses it as Least Concern That category covers species that remain widespread and reasonably abundant in the wild.

How large is the Rhinoceros Auklet's range?

The Rhinoceros Auklet has a mapped global range of about 316,000 km².