Department Bulletin No. 9 



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DEPARTMENT OF AGRICULTURE 



Dr. ARTHUR W. GILBERT, Commissioner 

 136 STATE HOUSE, BOSTON 



THE UTILITY OF BIRDS 



SECOND EDITION, REVISED 



DIVISION OF ORNITHOLOGY 



EDWARD HOWE FORBU5H, Director 



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BOSTON 



WRIGHT & POTTER PRINTING CO.. STATE PRINTERS 



32 DERNE STREET 



1922 



