Unlike birds whose plumage is mostly blue, the green coloring of a green bird’s feathers is the result of pigment, not a trick of the light. These birds’ emerald green, lime green, chartreuse ...

Not all birds of paradise emit light, but new studies have shown that many species do, using a phenomenon known as bioflourescence. Bioflourescence is when animals absorb light and emit it as a ...

Plumage and body parts of birds-of-paradise glow in certain areas when viewed under blue and ultraviolet, or UV, light, appearing bright green or yellow-green, scientists reported in a new study ...