187 
Table I. - Results of the 1953 Aerial Survey of Breeding Waterfowl in North Dakota 
as Compared with that of 1952 


Transect Square Mile Total Ducks Ducks Per 
No. in Sample Observed Square Mile 
1952 1953 1952 1953 
a a a ee ee a ea ae See re ee 
1 78.0 1,076 1, 474 13.8 18.9 
2 80.0 995 1,162 12.4 14,5 
3 79.5 912 1,659 11.5 20.9 
4 79.5 852 1,929 10.7 24.3 
5 80.0 982 1,728 12.3 21.6 
6 80.7 1,381 2,072 17.1 25.74 
7 83.0 831 1,905 10.0 22.9 
8 83.0 1,121 1,189 aS 14.3 
9 84.0 1,813 1,737 21.6 20.7 
“10 85.0 1, 300 1,703 15.3 20.0 
ll 85.0 1,091 1,432 12.8 16.8 
12 85.0. 828 972 9.7 11.4 
13 86.0 879 1,157 10.2 13.5 
14 86.0 789 790 9.2 24 
15 87.7 1,384 - 1,416 15.8 16,4 
16 89.0 964 1,136 10.8 12.8 
17 90.0 1, 957 1,111 21,7 12.3 
18 89.0 1,086 963 12.2 10.8 
Total 1,510.4 20, 241 25,535 
Average 13.4 17.1 
Table II. - Results of the 1953 Ground Survey of Breeding Waterfowl! in North Dakota 
Transect Sq. Mi. 
WATER AREAS 
Total Ducks 
WATERFOWL 
Breeding Pairs* 
No. in Surface Per Per Coots 
Sample No. Acres Square Mile Square Mile Observed 
I 59 130 18] 9.8 5,5 20 
II 60 185 232 7.7 4.7 12 
III 58 361 376 11.9 7.4 112 
IV 58 588 938 19.3 11.5 165 
Vv 6r 364 1, 302 20.9 12.1 93 
Vi 52 483 261 8.8 5.3 5 
VII 50 392 168 6.6 4.2 97 
VIII 55 254 158 2.6 1,4 29 
Total 453 2,757 3,616 533 
Average 10.9 6.5 

* The number of breeding pairs is based upon the assumption 
that each male observed represents a breeding pair. 
f 
