the blue jay. The brilliant blue patterns on the tail and the blue in its chest is just light being used to fool your eye. Think of the feather like a prism that refracts light. “They call it a ...

What makes a blue jay blue or a cardinal red ... from either pigments or from light refraction caused by the structure of the feather; in some cases, it’s a combination of the two.

The blue we see is created by light refracting within the structure of the feathers and ... The next time you find a blue jay feather, take it home, and hit it with a hammer.

Take blue jays for example, which only appear blue due to the structure of their feathers ... If you were to take a blue jay feather and grind it up or place it on a white, lit surface, it ...