Blue Feathers Naturally Curious with Mary Holland

The colors in the feathers of a bird are formed in two different ways, from either pigments or from light refraction caused by the structure of the feather. Red and yellow feathers get their color from actual pigments (carotenoids) that come from the bird’s diet. Blue, however, is a structural color, created by the way…

Birds Naturally Curious with Mary Holland

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Great Blue Heron Naturally Curious with Mary Holland

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