SPECIAL SCIENTIFIC REPORT — WILDLIFE 
This publication series (established in 1949) of the Fish and Wildlife Service contains reports of investigations related 
to wildlife. Each is published as a separate paper, but for economy several may be issued in a single cover. The Service 
distributes a limited number of these reports for the use of Federal and State agencies and cooperators. A list of recent 
issues appears on inside back cover. 
Library of Congress Cataloging in Publication Data 
Stoudt, Jerome H. 
Habitat use and productivity of canvasbacks in southwestern Manitoba, 
1961-72. 
(Special scientific report — wildlife ; no. 248) 
Includes bibliographical references. 
Supt. of Docs. no.: I 49,15/3:248 
1. Canvasback — Habitat. 2. Bird populations — Manitoba. 3. Birds — Habitat. 
4, Birds— Manitoba— Habitat. I. Title. II. Series, 
QL696.A52S83 1982 598.4'1 82-600111 
NOTE: Use of trade names does not imply U.S. Government endorsement of commercial products. 
