These phenomena, along with morpho butterflies’ brilliant blue wings, are examples of structural colors at play. The northern cardinal, a classic red bird, has pigment in its feathers that ...

Blue jays (recognizable by their blue, black, and white feathers. Unlike most blue birds, which exhibit sexual dichromatism, male and female blue jays share the same bright colors. This North ...

The bold hues of many bird feathers, such as the peacock's ... from mustard gold to peacock blue, featuring page after page of hand-painted color swatches. These humble beginnings—Ridgway ...

The new feathers will be needed to offer the best insulation against the cold in winter, and to make the bird’s best case for a mate come spring. The blue jay this feather once belonged to was ...