Fawn-tailed Barbed-throat (Threnetes cirvinicauda), John Gould How constantly are we receiving novelties from the richly wooded districts bordering the River Napo, and how many fine birds appear to inhabit this luxuriant region !—a zone, as it were, intermediate between the elevated portions of the great Andean ranges and the flat lands of the eastern parts of South America. This illustration has been restored to its original vibrancy by enhancing colors and removing unwanted marks. A monograph of the Trochilidæ, or family of humming-birds was published between 1849 and 1887 by English ornithologist John Gould. This monumental work depicts and describes all the known species of hummingbirds at the time - comprising 418 lithographic plates and information on 537 species."