Black-breasted Hill-star (Oreotrochilus melanogaster), John Gould No species of this well-defined group of Humming-birds is so rare in the collections of Europe as the Oreotrochilus melanogaster: a circumstance which is due to the fact of the country of which it is a native being more unfrequently visited than those inhabited by the other species. 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."