Why Blue Birds Aren’t Really Blue

May 12, 2024



There is no bird species that can produce the color blue. Birds get their color from pigments in the food that they eat, and there is no food that allows them to produce the color blue. The blue bird’s color is the result of the structure of the feathers and how light is reflected. The red and yellow wavelengths of light cancel out and the blue wavelength is left. This is what we perceive by the human eye, making the bird blue.

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Daniel Ganninger - The writer, editor, and chief lackey of Knowledge Stew, the author of the Knowledge Stew line of trivia books, and editor of Fact World and the Knowledge Stew sister site on Medium, our ad-free subscription sites. I hope you learn many new things here that add to your knowledge.

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