In the original printed publication, the bird images were displayed alterrnating on the right-hand and left-hand column on the odd and even pages respectively. Here they are all presented on the right-hand side.

The text presented is that obtained through the conversion of the printed text into digital form. Where questions remained as to the identification of the converted image, several on-line versions of the text and other resources were consulted in an attempt to resolve them. For example, the word "Alleghenies" appears 30 times and "Alleghanies" only 6. So for consistancy, the 6 were converted.

In addition to the list of corrections listed below, a number of minor corrections were made. In several cases (species 466, 581, and 680), the Species descriptions end with a comma. It was assumed that they were meant to be a period and one has been inserted in its place.

The U. S. adopted the named Kodiak in 1890; but islanders and others continued to use "Kadiak" until the early 1920s. Therefore, the word Kadiak was retained on pages 230 and 356. In the case of the bird species, some have names that differ from common names used today (for example Canon Wren instead of Canyon Wren) and the A.O.U. listing shows Cañon for two species of Wren and a Towhee which were retained. As for the scientific names, there are two spellings for species named in honor of Audubon ("auduboni" and "audubonii") which have been retained as they appear in the original publication.