LETTER OF TRANSMITTAL. 
U.S. DeparTMENT oF AGRICULTURE, 
BroLoeicaL SuRVEY, 
Washington, D. C., February 25, 1910. 
Str: I have the honor to transmit herewith for publication as 
Bulletin No. 34 of the Biological Survey, Part II of the Birds of Cali- 
fornia in Relation to the Fruit Industry, by Prof. F. E. L. Beal. 
This, the final part of the report, treats of some of the most important 
California birds from the standpoint of the orchardist and the farmer. 
Careful study of the food habits of birds that frequent orchards and 
their vicinity shows that most of the species are beneficial, and that 
without their aid the difficulty and expense of raising fruit would be 
enormously increased; still a few species under certain circumstances 
are harmful and need to be held in check. 
Respectfully, — i 
. Harr Merriam, 
Chief, Biological Survey. 
Hon. James WI1son, 
: Secretary of Agriculture. 
