The post A Blue Jay Feather Isn’t Really Blue — Here’s Why appeared first on Birds and Blooms. ... “Depending on how you see them in the light, they can show blue or golden-yellow,” he says.

Red bird, blue bird: LSU doctoral student explains the why of birds of colorful feather ... As the viewing angle changes, the refracted light becomes visible in a glowing display.

Object Details Catalogue Status Research in Progress Description Grouping of seven birds in flight, all flying different directions. Clockwise from top: brown bird facing downward and right, light ...