Citado Wood-Nymph (Thalurania hypochlora), John Gould The discovery of this fine Wood-Nymph is due to Mr. Buckley, who procured both sexes at Citado, in Ecuador. 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."