
ACKNOWLEDGEMENTS 
This report would not be possible without the cooper- 
ation of the Canadian Wildlife Service, State and Provincial 
Conservation Departments, and personnel in Regions 3, 4, and 
5 of the Bureau. 
Appreciation is expressed to the many individuals who 
participated in singing-ground counts and wing collections. 
Special thanks are due to personnel in the Michigan Conservation 
Department and the U. S. Forest Service, as well as private 
citizens of the State, for their coverage of random routes in 
1963. 
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