What Is the Most Colorful Birds in the World 2025? When it comes to vibrant feathers, few birds can rival the beauty of the Mandarin Duck. Known for its stunning plumage, the Mandarin Duck is often regarded as one of the most colorful birds in the world. Native to East Asia, particularly China and Japan, this bird is characterized by its bold combination of orange, purple, and white feathers, along with a distinctive green head and red beak.