Mexican Hermit (Phaëthornis cephalus), John Gould The occurrence of this bird in Veragua, Guatemala and Mexico proves that the larger Phaëthorni are not confined to the countries south of the Isthmus, but, like many other forms, are represented in Central America by species peculiar to that part of the continent. 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."