PREFACE 
"Movements of Waterfowl Broods in Manitoba'"' is the result of a 
cooperative program of the University of Minnesota, the Delta Waterfowl 
Research Station of the Wildlife Management Institute, and the Fish and 
Wildlife Service, 
The University of Minnesota initiated the study as a thesis problem 
for Charles Evans; the Delta Station furnished funds, facilities, and 
assistance for the exploratory work during the first summer; subsequently 
the Fish and Wildlife Service named Charles Evans a collaborator and 
financed the project. Coauthors William H. Marshall and Arthur S. Hawkins 
gave general guidance to the investigation. 
Of the many complex problems in waterfowl management, few 
need more attention than those concerning the relations between the birds 
and their breeding environment. Studies like the one reported here should 
bring about better management through better understanding of the birds 
and what they need to maintain themselves. 
Cc. S. Williams, Chief 
Section of Waterfowl Management 
Investigations 
Branch of Game Management 
