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Winter Blues

Posted on Feb 13, 2017

Blue Jays (Cyanocitta cristata) can look so vibrantly blue on sunny days, but blue coloration in animals is very rarely created by blue pigment. Instead, their stunning hues are created by refractive colors of light, breaking on microscopic structure of the feathers. Minute barbs on their feathers are specially modified to scatter light in a way that makes them appear blue, rather than showing the brown melanin that their feathers are colored with. Yes, Blue Jays are not actually blue!