A gorget, from the French term, gorge, meaning throat, was a piece of armor protecting the throat in the middle ages. Here it refers to the colorful feathers covering the throat of a hummingbird. In this image, of a male Allen's Hummingbird, the gorget has hues that go from yellow, to copper, to red. In bright sunlight it would be iridescent red, and white at the brightest parts, reflecting the sunlight. Here, on a cloudy day, it is easier to see the shifting hues.