Clarks Grebe, on upper Pahranagut Lake
Associating with two western grebes. White above eye with "carrot orange" bill.
I have some reason to think this might be a Clark's/Western hybrid, such as the rather muted bill color
Clark's Grebe (Aechmophorus clarkii) is a North American species in the grebe family. Until the 1980s, it was thought to be a pale morph of the Western Grebe, which it resembles in size, range, and behavior. Intermediates between the two species are known.