Least Auklet

Aethia pusilla

Order

CHARADRIIFORMES

Family

Auks, Murres and Puffins (Alcidae)

Code 4

LEAU

Code 6

AETPUS

ITIS

Egg Color:

White, nest stained



Number of Eggs:

1



Incubation Days:

28 - 36



Egg Incubator:

Both sexes



Nest Location:

On ground.



Nest Material:

No nest materials.



Migration:

Some migrate



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General

Least Auklet: Very small seabird with black upperparts, small white plumes behind eyes, and black-mottled white underparts, which vary from nearly all gray to white. Bill is short and gray with orange-red tip. Sexes are similar. Winter adult has white underparts and darker bill.

Range and Habitat

Least Auklet: Breed on the Islands of Alaska and Siberia, and spend the winter close to the edge of the ice sheet. Their largest colonies are on the Aleutian Islands, St. Lawrence Island and Little Diomede Island, and winters offshore near breeding range. Preferred habitats include rocky coasts and open ocean.

Breeding and Nesting

Least Auklet: One white egg is laid in a small crevice with no nest materials added; nests in huge colonies on rocky slopes. Incubation ranges from 28 to 36 days and is carried out by both parents.

Foraging and Feeding

Least Auklet: Eats aquatic invertebrates; forages by diving from the surface and swimming underwater.

Vocalization

Least Auklet: Emits various twittering notes around breeding colonies.

Similar Species

Least Auklet: Parakeet Auklet lacks white whiskers on face. Marbled and Kittlitz's murrelets are larger, have slender dark bills, and dark eyes.

.
UnderpartsX

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

UpperpartsX
Back, rump, hindneck, wings, and crown.
PlumesX
Large, conspicuous, showy feathers.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X