Clark's Grebe

Aechmophorus clarkii

Order

PODICIPEDIFORMES

Family

Grebes (Podicipedidae)

Code 4

CLGR

Code 6

AECCLA

ITIS

Egg Color:

Pale blue, nest stained



Number of Eggs:

1 - 6



Incubation Days:

23 - 24



Egg Incubator:

Both sexes



Nest Location:

In shallow water.



Nest Material:

Made of floating detritus.



Migration:

Some migrate



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General

Clark's Grebe: Large grebe with gray-black upperparts, white underparts, and slender neck with white on front and black on back. Face is white above eye. Bill is yellow-orange. Sexes are similar. Formerly considered a pale morph of Western Grebe.

Range and Habitat

Clark's Grebe: Breeds from British Columbia, Saskatchewan, and Minnesota south to southern California, and sparsely to Arizona, New Mexico, and Colorado. Spends winters along the west coast and the Gulf coast, and on large river systems in west. Breeds on large lakes with reeds or rushes; winters mainly on shallow coastal bays and estuaries.

Breeding and Nesting

Clark's Grebe: One to six pale blue eggs are laid on a floating nest anchored to reeds; usually nests in dense, noisy colonies. Incubation ranges from 23 to 24 days and is carried out by both parents.

Foraging and Feeding

Clark's Grebe: Diet consists mostly of fish, but also takes insects and other invertebrates; sometimes eats amphibians and plants; forages by diving from the surface.

Vocalization

Clark's Grebe: Song is a loud "kr-r-rick", heard most often on breeding grounds.

Similar Species

Clark's Grebe: Western Grebe has greener bill. Horned and Eared grebes are smaller with much shorter bills that are never yellow. Red-necked Grebe is smaller and lacks bold black-and-white neck pattern.

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UnderpartsX

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

UpperpartsX
Back, rump, hindneck, wings, and crown.
FaceX
The front part of the head consisting of the bill, eyes, cheeks and chin.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X