Wedge-tailed Sabre-wing (Campylopterus Pampa), John Gould The cuneate form of the tail of this species of Campylopterus renders it very remarkable, not only among the members of its own genus, but among the Trochitdæ in general, for there are but few besides the present bird which display this peculiarity. 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."