Clark's Grebe: Large grebe, gray-black upperparts, white underparts, and slender neck with white on front and black on back. White face, black cap extends nearly to red eyes. Bill is yellow-orange. Until the 1980's thought to be a pale morph of the Western Grebe. Direct flight on rapid wing beats.
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 coast from southeastern Alaska to California, along 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.
First described in 1858, at the same time as the Western Grebe, Clark's Grebe was originally regarded as a distinct species and then as a color phase of the Western Grebe.
These two birds are once again considered separate species because they nest side by side with very little interbreeding.
A group of grebes are collectively known as a "water dance" of grebes.