Unlike birds whose plumage is mostly blue, the green of a green bird is the result of pigment and not a trick of the light. That emerald green, lime green, chartreuse, or yellow-green of yellow-green birds won’t fade because you’re looking at it at a certain angle and in a certain slant of light. Like other vividly colored birds, the different types of green birds tend to be found in the tropics, but not all the time. The green birds here have predominantly green feathers with areas of other bright hues since a bird that is completely green all over is exceedingly rare. The birds chosen are also green all the time and not just during their breeding season.
Green-crowned Brilliant (Heliodoxa jacula) in Panama