Lewis's woodpecker (Melanerpes lewis) is a large North American species of woodpecker which ornithologist Alexander Wilson named after Meriwether Lewis, one of the explorers who surveyed the areas bought by the United States of America as part of the Louisiana Purchase and discovered this species of bird.
One of the largest species of American woodpeckers, Lewis's woodpecker can measure up to 10–11 inches (25–28 cm) in length. It is mainly reddish-breasted, blackish-green in color with a black rump. It has a gray collar and upper breast, with a pinkish belly, and a red face. The wings are much broader than those of other woodpeckers, and it flies at a much more sluggish pace with slow, but even flaps similar to those of a crow. Its calls have a harsh sound relative to other woodpeckers', and it may use a repertoire of several different phrases. They are one of the three largest Melanerpes woodpeckers, being similar in size to the white woodpecker and the Jamaican woodpecker.