Eiders

• Kids and Teens: Science and Math: Science: Living Things: Animals: Birds: Waterfowl: Seaducks 

• All About Birds: Steller's Eider (Polysticta stelleri)  - Looks at physical characteristics, breeding and winter ranges, habitat, status, other names, map and pictures, reproduction, and feeding behavior.
• Common Eider (Somateria mollissima)  - Animal Diversity Web looks at images, physical characteristics, nesting, migration, life cycle, longevity, key behaviors, communication, primary diet, known predators, and status.
• Common Eider (Somateria mollissima)  - Cornell Lab of Ornithology examines size, plumage, forms, parenting, similar species, seasonal locations, habitat, diet, behavior, clutch size, and status.
• King Eider (Somateria spectabilis)  - Covers description, sound, video, status, images, range map, seasonal locations, habitat, nesting, sex differences, similar species, and diet.
• Project Puffin: Common Eiders (Somateria mollissima)  - Audugon.org article furnishes pictures, behavior, nesting habits, chick, sound file, appearance, and parenting.
• Spectacled Eider (Somateria fischeri)  - Contains description, pictures, distribution, nesting, reproductive features, migration, diet, status, and wintering areas.