Although the classification given is based upon one now used by nearly all systematic ornithologists, I have made some changes, in doing which I have been mainly guided by my anatomical researches. Nearly all of the characters used are illustrated by drawings which are explained, either in the text or under their proper headings in the list of plates. All the figures given, unless so stated, are life-sized.

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.