WMMu m mmmw 



STATE BOARD OF AGRICULTURE. 



ECONOMIC BIOLOGY — BULLETIN No. 3. 



THE NATURAL ENEMIES OE BIRDS. 



By EDWARD HOWE FORBUSH, 



State Ornithologist. 



BOSTON: 



WEIGHT & POTTER PRINTING CO., STATE PRINTERS, 



32 DERNE STREET. 



1916. 



