[CT Birds] Blue in Bluebirds
carriergraphics at sbcglobal.net
Tue Feb 24 10:47:00 EST 2015
About the male B Bird you notice. What you may be noticing is color change due to lighting. The color blue-esp in BBirds is a refractive process. Blue is reflected off their feathers when light hits it. A Bluebird in poor dark light can show very little blue, while in bright sunlight they just pop with bright blue.
Paul Carrier - Harwinton
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