Thick-billed Murre

Uria lomvia




Auks, Murres and Puffins (Alcidae)

Code 4


Code 6



Egg Color:

White, tan or blue-green with dark markings.

Number of Eggs:


Incubation Days:

28 - 35

Egg Incubator:

Both sexes

Nest Location:

On ground.

Nest Material:

No nest materials.





Thick-billed Murre: Medium-sized seabird with black upperparts, head and neck, and white underparts. A thin, white stripe extends from bill to cheek. Wings are black. Sexes are similar. Pacific birds have a slightly longer and thinner bill. Winter adult and juvenile have white throats and fore necks.

Range and Habitat

Thick-billed Murre: Breeds along the Arctic coast of Alaska and along the Aleutian Islands and also along Gulf of Saint Lawrence. Spends winters south from southern Alaska along the coast of British Columbia and along the Atlantic Coast of Canada to New Jersey; casual to mid-Atlantic states and California, also in Eurasia. Found along rocky coasts.

Breeding and Nesting

Thick-billed Murre: One large white, tan, blue or green egg marked with brown and black is laid on a narrow ledge; nests in dense colonies. Incubation ranges from 28 to 35 days and is carried out by both parents.

Foraging and Feeding

Thick-billed Murre: Diet consists of small fish and planktonic crustaceans. May feed far from breeding colonies; forages by diving from the surface and swimming underwater.


Thick-billed Murre: The main vocalization of this murre is a soft purring. On the breeding grounds, croaks, growls and moans are also made.

Similar Species

Thick-billed Murre: Common Murre has thinner, longer bill and lacks white point protruding onto throat; Razorbill has a heavier bill, whiter flanks, and a pointed tail.


Belly, undertail coverts, chest, flanks, and foreneck.

Back, rump, hindneck, wings, and crown.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X