the gyrfalcon (falco rusticolus) has many variations in color; they are often categorized into four groups, or ‘morphs’ - silver, brown, black, and white. white is the rarest, and is typically seen in snowy habitats where it can assist the falcon in camouflaging itself. the gyrfalcon is also the world’s largest falcon, and preys upon small mammals, birds, and reptiles, occasionally eating carrion.










