RANGE IN OHIO. 9 



FOOD. 



An effort has been made to indicate what constitutes the 

 food of the birds which spend much time in the state. In 

 many instances this has been done under the discussion of 

 the individual species, where the species seems to have a 

 strong influence upon agriculture or other economic inter- 

 ests, and where the food differs in some important respects 

 from that of the other members of the group. When the 

 group is not an important factor, or the food of the species 

 is much the same throughout the group, a discussion will 

 be found under the heading of the whole group. Informa- 

 tion upon the food habits of the birds has been gleaned 

 from various sources, acknowledgment of which will be 

 found elsewhere. An effort has been made to acquaint the 

 reader with the facts so far as they are known, and thus to 

 show what species are injurious and what beneficial to our 

 interests. 



MIGRATION. 



The subject of the migrations of the birds, into and 

 across Ohio has not received sufficient careful attention to 

 warrant tabulation of the dates of appearance and disap- 

 pearance of such species as migrate, nor any plotting of the 

 routes of migrations most generally followed. It is true 

 that several voluntary observers have worked faithfully and 

 well with the time at their disposal, and the results have 

 greatly extended our knowledge of the migrations, but 

 their time and means have been too limited for- exact re- 

 sults. They have made possible general statements, how- 

 ever, which will indicate the times of appearance and dis- 

 appearance and the general routes of movement across the 

 state. These general results are given in this catalogue. 



RANGE IN OHIO. 



The present Ohio range of the different species has been 

 largely taken from the numerous reports received, supple- 

 mented by published records and by the writer's work at 



