What Makes Flamingos Pink?

Answer

The characteristic pink colour of flamingos comes from the food they eat. Flamingos usually feed on shrimps, and blue-green algae. These foods are high in beta-carotene, and some flamingos in zoos appear white because they are not fed such foods. Carrots and beetroots are examples of vegetables containing beta-carotene, and they can change skin colour if taken in large amounts.
1 Additional Answer
Flamingo's feathers can be a pinkish color, red and even orange. Due to their diet of crustaceans this changes their feather color. The color could be light pink to dark reds.
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