These birds have no color pigment whatsoever, they have some melanin in the feathers which gives strength. The colorful effect created by way the keratin in the feathers is layered. As light falls on the feathers the keratin layers reflect different wavelengths of light resulting is this amazing iridescent coloring.
Canon 7D
Canon 400 f5.6 L
AV f6.3
TV 1/1600
ISO 800
Subject distance 6.5m
Evaluative Metering
AWB
RAW processed in CS5 iMac







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