6 Purple Honeycreeper - Found in the Caribbean and South America, the purple honeycreeper does have a bill that’s too long and curved, but its plumage, a startling shade of amethyst, puts it on the list of the most beautiful birds in the world. It’s a little bird, only about 4.5 inches long, but the male has those purple feathers with black wings, belly, and tail, all contrasting beautifully with bright yellow legs.