Why Are Some Feathers Blue?, Science

New research into a long-puzzling feature of avian life shows there's more to color than meets the eye

Are Blue Jays Really Blue?

Bird Feathers Produce Color Through Structure Similar to Beer Foam

Everything You Need To Know About Feathers

Why Are Some Feathers Blue?, Science

Female hummingbirds may sport flashy feathers to avoid being harassed

Super-black feathers can absorb virtually every photon of light

Spatially modulated structural colour in bird feathers

Physics of Feather Color Holds Clues to Diversity of Life

Blue Birds - Are They True? - Bird Buddy Blog

Blue Birds Aren't Blue, and This is How They Fool You

Why Do Birds Have Feathers? (Tell Me More! Science): Owen, Ruth

When is a blue bird not blue?