White-breasted Emerald (Thaumatias candidus), John Gould The Thaumatias candidus ranges widely over the southern parts of Mexico and Guatemala, and, judging from the number of specimens which have been transmitted to Europe through the instrumentality of De Lattre, Sallé, Skinner, and Salvin, it must be a common species in those countries; at the same time, I doubt not that, like nearly every other member of the family, it is somewhat local. 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."