Coppery-Tail (Metallura cupreicauda), John Gould This large and extremely fine bird is distinguished from all the other members of its genus by its greater size, the dark colouring of its breast, and the lustrous coppery hue of the under surface of its tail. 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."