TABLE B-46. --Duck broods, by class and stratum, northern Saskatchewan, northern 
Manitoba, and western Ontario 1963 and 1964 
Year and class 
Stratum 
Total 
broods 
Percent 
of year's 
total 
Ontario C 
Manitoba 
Saskatchewan C 
C 
D 
South 
North 
1963: 
Class I- 
4 
2 
10 
11 
— 
27 
12 
Class II- 
27 
29 
58 
59 
8 
181 
80 
Class in- 
3 
7 
1 
6 
2 
19 
8 
1964: 
Class I- 
5 
3 
21 
14 
3 
49 
11 
Class H- 
26 
50 
98 
104 
14 
292 
71 
Class HI- 
4 
21 
13 
25 
9 
72 
18 
TABLE B- 47.--Production survey indexes, by stratum, northern Saskatchewan, 
northern Manitoba, and western Ontario, July, 1955 to 1964 
[Index numbers, in thousands] 
Year 
Ontario C 
Stratum 
Total 
Manitoba 
Saskatchewan C 
C 
D 
South 
North 
Number of young: 1 
1955- 
— 
59 
30 
46 
80 
215 
1956- 
— 
2 
7 
11 
86 
106 
1959- 
— 
25 
20 
62 
58 
165 
I960- 
60 
45 
26 
26 
56 
213 
1961- 
116 
47 
37 
38 
65 
303 
1962- 
173 
52 
24 
68 
77 
394 
1963- 
129 
64 
52 
144 
92 
481 
1964- 
114 
97 
84 
230 
235 
760 
Late-nesting index: 2 
1955- 
— 
29 
10 
11 
13 
63 
1956- 
— 
2 
7 
5 
28 
42 
1959- 
— 
9 
4 
9 
17 
39 
I960- 
22 
9 
6 
8 
17 
62 
1961- 
6 
8 
16 
9 
12 
51 
1962- 
100 
30 
58 
82 
29 
299 
1963- 
124 
49 
29 
65 
64 
359 
1964- 
60 
44 
39 
58 
66 
267 
dumber of broods multiplied by average brood size. 
o 
As indicated by adult pairs and singles. 
79 
