Eider ducks are large sea ducks admired for their incredibly soft down, which they pluck from their own bodies to line their nests and keep their eggs warm. They live along the chilly northern coasts of Europe, North America, and Asia, and are perfectly suited to life in cold marine environments. Males stand out with bold black and white plumage, while females blend in with mottled brown feathers that provide excellent camouflage. They are also skilled divers, plunging beneath the waves to feed