White-breasted Leucippus (Leucippus chionogaster), John Gould If this bird had been one of the most beautiful, instead of one of the plainest and most modestly attired species of the family, it could scarcely have received a greater degree of attention than has been bestowed upon it by the various naturalists interested in this group of birds; for, although a comparatively recent discovery, it has received no less than four specific appellations, and been placed in more than as many genera. 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."