TABLE B-54.—Percentage age-class distribution of duck broods, by stratum, southern 
Manitoba, 1954 to 1964 
Year 
Stratum A 
Stratum B 
Total 
Class 1 
Class n 
Class m 
Class 1 
Class n 
Class m 
Class 1 
Class n 
Class m 
1954- 
61.5 
33.5 
5.0 
62.9 
20.0 
17.1 
62.2 
26.4 
11.4 
1955 - 
41.9 
30.2 
27.9 
17.4 
43.5 
39.1 
29.9 
36.7 
33.4 
1956 -•- 
31.2 
41.6 
27.2 
17.6 
50.0 
32.4 
29.4 
42.8 
27.8 
1957 - 
29.2 
43.2 
27.6 
28.1 
56.1 
15.8 
29.1 
44.4 
26.5 
1958 - 
51.7 
34.5 
13.8 
45.2 
45.2 
9.7 
51.2 
35.4 
13.5 
1959 - 
60.4 
32.7 
6.8 
63.0 
34.8 
2.2 
60.8 
33.0 
6.2 
I960 - 
47.4 
45.4 
7.2 
41.0 
54.1 
4.9 
45.9 
47.5 
6.7 
1961- 
35.6 
50.0 
14.4 
28.8 
59.1 
12.1 
30.9 
56.3 
12.8 
1962 - 
40.2 
50.5 
9.2 
42.3 
42.3 
15.4 
40.6 
48.7 
10.7 
1963 - 
9.5 
44.4 
46.1 
16.6 
41.7 
41.7 
11.0 
43.8 
45.2 
1964 -- 
36.3 
52.5 
11.2 
27.6 
58.6 
13.8 
35.2 
53.2 
11.6 
TABLE B-55. - -Waterfowl breeding population, by area and year, Chippewa National 
Forest, Minnesota, 1963 and 1964 
AREA 
1963 
1964 
Percent change 
Bowstring-- 
238 
245 
+3 
Burns - 
107 
118 
+10 
Kitchie- 
112 
204 
+82 
Lower Pigeon- 
117 
85 
-27 
Mud lake- 
251 
141 
-44 
Raven Lake- 
17 
11 
-35 
Round Lake- 
327 
729 
+123 
Third River- 
141 
184 
+30 
lake Winnibigoshish - - 
568 
309 
-45 
Rabideau lake- 
247 
247 
— 
Total- 
2,125 
2,273 
+7 
TABLE B-56.—Species composition, Chippewa National Forest, Minnesota, 
1963 and 1964 
SPECIES 
1963 
1964 
Mallard- 
52 
43 
American widgeon- 
8 
12 
Blue-winged teal - - - 
11 
18 
Wood duck- 
13 
13 
Ring-necked duck- 
1 
3 
Goldeneye - 
12 
16 
Other- 
3 
1 
85 
