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…

Poplar and Grouse, Winter 2019

Naturally Curious with Mary Holland, An online resource based on the award-winning nature guide – [email protected]

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A Birds Eye View, exploring bird vision The JOLT News Organization, A 501(c)(3) Nonprofit Organization