RANGE IN OHIO. 9 
Foop. 
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 
