Excerpt from Pocket Guide to the Common Land Birds of New England The student may occasionally be puzzled by finding, after one description of a bird in the key, the words either sex, and after another descrip tion of the same bird the word female. In some cases, as, for example, the pine warbler, the females vary widely, sometimes quite closely resembling the male, sometimes being decidedly unlike them. Hence two descriptions of a female are necessary. 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.