Bucephela Albeola is a species of diving duck that commonly goes by the name "Bufflehead." Other synonyms for Bucephela Albeola include "Butterball," "Spirit Duck," and "Bubble-head." These ducks are easily recognizable by their small size and striking black and white coloring. During breeding season, the male Bufflehead has iridescent feathers that shimmer a greenish-purple color in the sunlight. These ducks nest in tree cavities near water and are commonly seen in North America, particularly in the northern United States and Canada. Despite their small size, Buclephela Albeola are powerful swimmers and divers, able to reach depths of twenty feet or more in search of food.