¥9 
Indices to Total Breeding Pairs 
Species 
Mallard 
Pintail 
B-w. Teal 
G-w. Teal 
Gadwall 
Baldpate 
Shoveler 
Black Duck 
Wood Duck 
Total Puddlers 
Redhead 
Canvasback 
Scaup 
Ringneck 
Ruddy Duck 
Goldeneye 
Total Divers 
Total Ducks 
Coot 
Average Index 
1949 to 1953 
19, 147 
4, 830 
47,006 
302 
690 
1,617 
2,933 
103 
449 
77,077 
3, 530 
129 
3, 709 
9,229 
1,553 
552 
18, 702 
95,779 
40, 793 
1953 Index 
18, 543 
5, 606 
54,769 
431 
863 
2,156 
3,019 
431 
85, 818 
3, 850 
43] 
2,588 
9,488 
431 
431 
16, 819 
102, 637 
48, 731 
% 
Lone 
53.9 
46.0 
18.9 
57.4 
20.0 
48.5 
28.7 
1954 Index 
19,094 
4,744 
40, 538 
1,725 
4,744 
2,588 
5,175 
863 
75,471 
3, 881 
431 
4,744 
8,194 
1,725 
1,294 
20, 269 
95, 740 
89,269 
% 
Lone 
62.4 
78.4 
28.5 
83.3 
42.9 
39.3 
51.8 
57.1 
42.8 
25.0 
50.0 
38.5 
19.5 
52.9 
33.3 
29.4 
39.9 
Percent Change 
of 1954 Index 
Av. (a) 1953 (b) 
- 21 - 19 
- 2 - 15 
- 14 - 26 
+471 +300 
+588 +450 
+ 60 + 20 
+ 76 + 71 
+ 92 +100 
~ 2 - 12 
+ 10 + 0.8 
+234 same 
+ 28 + 83 
- ll ~ 14 
+ 11 +300 
+134 +200 
+ 8.3 + 21 
- 0.04 - 7 
+119 + 83 
An intensive ground survey in the Chippewa National Forest revealed an estimated 
breeding population of 1,452 birds. This was 15 percent greater than in 1953, but 
23.1 percent below the average for the period 1939 through 1953. 
