Archive image from page 189 of Cuvier's animal kingdom arranged. Cuvier's animal kingdom : arranged according to its organization cuviersanimalkin00cuvi Year: 1840 Fig. 85.—Sternum of Haw Gro3be8l<. ribs ; the single deep and angular posterior emargination, reduced to a foramen in some ; the long, slender, and curving furcula, with invariably a compressed vertical appendage;—all are characters that at once indicate the present order, and exclude every one of the genera that have been enumei'ated. They have constantly a large brain, and characteristic form of skull, ex- cepting in one gen
Archive image from page 189 of Cuvier's animal kingdom arranged. Cuvier's animal kingdom : arranged according to its organization cuviersanimalkin00cuvi Year: 1840 Fig. 85.—Sternum of Haw Gro3be8l<. ribs ; the single deep and angular posterior emargination, reduced to a foramen in some ; the long, slender, and curving furcula, with invariably a compressed vertical appendage;—all are characters that at once indicate the present order, and exclude every one of the genera that have been enumei'ated. They have constantly a large brain, and characteristic form of skull, ex- cepting in one genus ; twelve tail- feathers, another character which excludes the genera Cypsebis, Capri- mulgus, Podargus, Colius, Upupa, Trochilus, and Buceros j and their clothing feathers have rarely any trace of the supplementary plume, which is never developed beyond a few downy filaments. All of them are hatched naked, and in nearly every instance from colom-ed or speckled eggs, larger at one end, and in a nest constructed and generally interwoven by the parents,—extremely few other Birds doing more than heaping together a quantity of materials. The toes are formed for perching ; and are always three before and one hindward, the outward and middle toes being in every instance connected to the first joint, and sometimes further.] The first family of this division is that of The Dentirostres,— Wherein the upper mandible is notched on each side toward the It is in this family that the greatest number of insectivorous Birds occur ; though many of them feed likewise on berries and other soft fruits. The genera are determined by the general form of the beak, which is stout and compressed in the Shrikes and Thrushes, flattened in the Flycatchers, round and thick in the Tanagers, and slender and pointed in the Pettychaps group ; but the transitions from one to another of these forms are so gradual that it is very difficult to limit the genera. [The study of the changes of plumage
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