Wikipedia
Aechmophorus
Aechmophorus is a genus of birds in the grebe family.
It has two living representatives breeding in western North America.
- Western grebe, Aechmophorus occidentalis
- Clark's grebe, Aechmophorus clarkii
One prehistoric species has been described from fossil remains:
- Aechmophorus elasson (Late Pliocene of W USA)
Although the two living species look very similar, bill shape and coloration, as well as feathering around the scarlet eye of the bird can be used to determine the precise species.