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II. ECONOMIC ZOOLOGY 
A. Game and Rodents 
Mass. Animal Damage to Agricultural Crops in Massachusetts. 
Learn the birds responsible for loss of cultured blueberries 
and ways of preventing this loss. 
For., Wild Life Mgt. 79 
Minn. The Effect of Forestry Practices on Ruffed Grouse 
Population. To (1) determine ruffed grouse populations and 
the environmental factors affecting them, (2) learn grouse 
movements and their use of various forest coveetar(S) relate 
these two objectives to forestry practices. 
Ent., Zool. 1732 
Ne Ye Studies of Mammalian Wildlife of Economic Importance in 
(Cornell) New York and the Control of Injurious Species. To obtain 
fundamental biological data on which to base development of 
improved methods for control of injurious mammals and the use 
of beneficial ones. 
Conserv. 82 Coop. USDI-FWS 
Ohio Ecological Study of the am Gh: Blackbird as It is 
Related to the Damage of Crops. (1) Conduct an ecological 
study of the Red-Winged Blackbird to obtain clues to its 
control in crops. (2) Study its reaction in plots of corn for 
clues to its control by use of resistant varieties, planting 
dates, or various treatments. 
Ent. 171 
Oreg. Improvement and Management of Oregon Pastures and Ranges: 
An Evaluation of Rodent Damage and the Need for Control Measures 
on Oregon Sagebrush Ranges. To learn (1) influence of rodents 
and other small mammals on plant succession of selected habitat 
types on eastern Oregon sagebrush ranges; (2) various species and 
numbers of rodents and other small mammals including rabbits 
present. (3) Study habits and movements of these and add infor- 
mation to their life histories. (4) Learn need for rodent control 
measures in improving sagebrush ranges. 
Fish and Game Mgt. 160-11 Coop. ARS and USDI-FWS 
Pa. Forest Cutting Practices Affecting Deer Foods. To deter- 
mine quantity of deer browse produced by silvicultural cutting 
practices. 
For., Zool., Ent. 1057 
