Snowy-throated Emerald (Thaumatias chionopectus), John Gould I have looked in vain for a name and description of this very familiar species, which is quite as common in our collections as the Thaumatias leucogaster. 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."