Blue-necked Azure-Crown (Cyanomyia cyanicollis), John Gould The range of the members of the genus Cyanomyia extends over many degrees of latitude, or from Mexico to Peru, but all are inhabitants of temperate regions, none ascending to the snow-line, or descending to the sultry plains below. 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."