Southern Hermit (Paëthornis zonura), John Gould The group of little Hermits to which Bonaparte applied the generic name of Pygmornis appear to have representatives in every part of South America; at least species exist in all the hotter and temperate portions of that great country. 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."