INTRODUCTION IX 



each case. Nor did it seem necessary to say that only one brood is 

 raised in a season, as this is a nearly universal rule with all water 

 birds. 



The manuscript for this volume was completed in March, 1927. 

 Contributions received since then will be acknowledged later. Only 

 information of great importance could be added. When this volume 

 appears contributions of photographs or notes relating to the 

 gallinaceous birds should be sent to 



The Author. 



