The Tufted Duck, Aythya fuligula, is a medium-sized diving duck with a population of close to one million birds. The Tufted Duck breeds widely throughout temperate and northern Eurasia. It occasionally can be found as a winter visitor along both coasts of the United States and Canada. These ducks are migratory in most of their range, and winter in the milder south and west of Europe, southern Asia and all year in most of the United Kingdom. They will form large flocks on open water in winter.
Factsheet: Tufted Duck Aythya fuligula