Bufflehead will take up residence in nest boxes during the summer in forested areas of central and western Canada. They’re more likely to choose a small box (6 x 6 x 15 inches) with a 2.5-inch-diameter opening than a large box (7 x 7 x 15 inches or bigger) with a larger opening.
Find This Bird
During the winter, look for these tiny, black-and-white ducks in sheltered coves along the Atlantic or Pacific coast, or on inland ponds in southern North America. While foraging they spend half their time underwater, so scan carefully and patiently. In the summer you can visit their breeding grounds near lakes in the boreal forest and aspen parklands of central Canada.