A Synopsis of the Birds of North America by John James Audubon

“The figures and descriptions contained in the works entitled “The Birds of America,” and “Ornithological Biography, or an Account of the Habits of the Birds of the United States,” having been issued in the miscellaneous manner which was thought best adapted to the occasion, or which was rendered necessary by circumstances, seemed to require a systematic index, in which the nomenclature should be corrected, and the species arranged agreeably to my present views. This Synopsis, then, will afford a methodical catalogue of all the species hitherto discovered in the vast regions, extending from the northern confines of Mexico to the Polar Seas, and which have been described, and, with few exceptions, depicted in the works above named.” -Preface