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David Callejas

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January 20, 2019

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Nina Gorenstein
West Lafayette, IN, USA

05/29/2022
04:56 pm

Equipment Details:

Nikon Coolpix P950

Post-processing Details:

Cropped, combined

Image Details:

Different colors of plumage of a male of Mallard duck depending on the lighting. This coloration of the head feathers is not caused by the presence of special pigments, but is caused by interference on the microscopically structured surfaces of the feathers.

Posted

January 20, 2019

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David Callejas

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About the Author:

David Callejas, Marketing Director, helps bring EarthSky's content to the world via online ads and other products. He creates strategies that help people around the world find us and appreciate the work we do. He helps manage the EarthSky Store and bring to you the new products that you love. He's the chief liaison between EarthSky.org and the world of commerce. All that, plus he helps post content and populate our pages on Facebook, Google+ and Twitter. Go David!