Excerpt from Life Histories of North American, Wagtails, Shrikes, Vireos, and Their Allies: Order Passeriformes This is the eighteenth in a series of bulletins of the United States National Museum on the life histories of North American birds. The same general plan has been followed and the same sources of information have been utilized as in previous bulletins, to which the reader is referred. As this and the previous bulletin were prepared simultaneously and were originally intended to be published as one bulletin, the list of contributors is the same for both volumes and need not be repeated here. Eighteen complete life histories were contributed especially for this volume; eight were written by Bernard W.Tucker and five by Dr. Winsor M. Tyler; Dr. Alden H. Miller, Wendell Taber, Alexander F. Skutch, Alexander Sprunt, Jr., and Eobert S. Woods contributed one each. The same valued assistance was rendered by Dr. Winsor M. Tyler, in indexing, and by Wm. George F.Harris in preparing the egg data and measurements. The manuscript for this volume was completed in 1943. Contributions received since then will be acknowledged later. Only information of great importance could be added. 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.