Great Jacobin (Florisuga flabellifera), John Gould The chief difference between this species and the Florisuga mellivora consists in its far greater size and in the browner colouring of the tips of the tail-feathers: the extent of its range is at present unknown, but we have positive evidence that it is by no means uncommon in the island of Tobago; numerous specimens having been sent from thence by Mr. Kirk to Sir William Jardine, Bart., to whom I am indebted for the specimens illustrated in the present work; I have also examples from the Orinoco, and others from different localities in South America which are at present unknown to me. 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."