Western grebe (Aechmophorus occidentalis) group.

The western grebe is a species in the grebe family of water birds. Folk names include "dabchick", "swan grebe" and "swan-necked grebe".

Western grebe fossils from the Late Pleistocene of SW North America were described as a distinct species, but later ranked as a paleosubspecies ''Aechmophorus occidentalis lucasi''. More recent study found them to fall within the variation now known to exist in today's birds.