Excerpt from The Birds of North and Middle America, Vol. 7: A Descriptive Catalogue of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in North America; Family Cuculidae, Family Psittacidae, Family Columbidae In the seven volumes thus far published are treated in detail (that is, with full descriptions and synonymies), besides the Families above mentioned and the higher groups to which they belong, 564 genera and species and subspecies, besides 191 extralimital genera and 561 extralimital species and subspecies whose diagnostic characters are given in the Keys and their principal synonymy (full synonymy in case of the genera) given in footnotes. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.