Obvious typos have been amended. Variations in spelling in the
original text have been retained, except where usage frequency was
used to determine the common spelling and/or hyphenation. These
amendments are listed at the end of the text. Minor printer errors
have been amended without note.
The INTRODUCTION has been added to this volume as per author intent
in the Preface to Volume II. Color plate notations of specified
birds have been relocated to follow the title of the bird.
The full INDEX from Volume II has been added to this volume. (It has
also been added to the Table of Contents.)
In this e-text the letters a and u with a macron are represented by
[=a] and [=u], respectively.