BULLETIN UNIVERSITY OF MONTANA, 



No. 18. 

 BIOLOGICAL. SERIES No. 6. 



ADDITIONAL NOTES 



Summer Birds of Flathead Lake, 



■WITH SPECIAL REFERENCE TO 



SWAN LAKE 



LIBRARY 

 NOW YORK 

 BOTANICAL 



GARDEN 



PERLEY MILTON SILLOWAY, 



Principal Fergus County Free High School, Member Aoierican Ornilhologists Union. 

 Author of "Some Common Birds," "Summer Birds of Flathead Lake," Etc. 



WITH INTRODUCTION BY MORTON J. HLROD. 



Prepared at the University of Montana Biological Station, Bigfork, Mont. 

 Under Direction of Morton John Elrod. 



University of Montana, Missoula, Montana, U. S. A. 



1003. 



NOe^ENDENT PUBLISHING COMPANY, HELENA, 



