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Table I - Physiographic Distribution of the Breeding Waterfowl Population and 
1953-1954 Trends 











Corrected * Ducks Est. Minimum Percent of State- 
Physiographic per Square Mile Populaticn wide Population 
Division 1953 1954 Change 1953 1954 1953 1954 Change 
Minnesota 
Valley 10.58 12.37 417% 13, 000 1% 2% + 1% 
Prairie 
Hills 26.22 22.34 = 15% 212,000 21% 22% + 1% 
James River 
Valley 22.19 20.58 - 7% 416, 000 41% 47% + 6% 
Missouri 
Hills 22.90 14.29 ~38% 173, 000 17% 13% - 4% 
Missouri 
Plateau 4,30 3.45 -35% 207, 000 20% 16% - 4% 
State -wide ** 13.65 10. 85 -21% 1,021, 000 100% 100% 0 
* Corrected from ground transect data to compensate for unobserved females on 
nests. Corrected by 1.12 in 1953 and 1.22 in 1954. | 
** Based in 1954 on twice the number of ducks observed and twice the number of | 
Square miles of the reduced Missouri Plateau coverage. 
