Excerpt from The Birds of the British Isles and Their Eggs: First Series; Comprising Families Corvidae to Sulidae; With 242 Accurately Coloured Illustrations Grouping of birds according to time and frequency of appear ance is misleading many species cannot be placed in a single group. Individuals of certain species remain with us all the year round as permanent residents, though others of the same kind are visitors in summer or winter only, and some migrating through our islands come into the fourth group. Numbers of species, like the song-thrush and Starling, are in the first four classes, and even the Swallow, a typical summer visitor, is also a bird of passage. 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.