The male Common Goldeneye adds a bright note to winter days with its radiant amber eye, glistening green-black head, and crisp black-and-white body and wings. The female has a chocolate brown head with the same bright eye that gives this species its name. These distinctively shaped, large-headed ducks dive for their food, eating mostly aquatic invertebrates and fish. They nest in tree cavities in the boreal forest of Canada and Alaska; look for them on large rivers, lakes, and Atlantic, Pacific, and Gulf coasts in winter.