What is the difference between a bufflehead and a goldeneye? Bufflehead are smaller than goldeneyes. Both birds at a distance have bright white sides, but common and barrow’s goldeneyes have a white patch just behind the bill. Buffleheads drakes have a large white patch on the back of their heads. Female buffleheads are more uniform brown, with a white patch on the head that female goldeneyes lack.
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