PREFACE ix 



erable, though it amounts to less than one twelfth as 

 much as that contained in the Journal. For the con- 

 venience of readers a full index of it is given in an 

 Appendix to this volume. 



The editor desires to thank Mr. William Brewster 

 and Dr. Charles W. Townsend for generous and help- 

 ful advice in the identification of certain of Thoreau's 

 birds, and, in closing, to express his confidence that the 

 reader of this book will lay it down at the end with a 

 more lively feeling of gratitude to the man who, writ- 

 ing in prose, has written more poetry about American 

 birds than all our poets together. 



Boston, April, 1910. 



