This sea duck, with its contrasting black-and-white plumage, is covered with highly insulating down.

When the female leaves the nest, she covers the eggs with down to protect them from the cold. For many years, eiderdown gathered from nests has been used to make warm clothing.

This eagle often nests in forests located near vast expenses of water like the Great Lakes.

The use of pesticides like DDT in the 1960s and 1970s decimated bald eagle populations since it affected their ability to reproduce. Prohibiting this product in 1972 allowed the bald eagle to survive.