TABLE B-71. - -Waterfowl brood and late-nesting indexes by Strata compared with previous 
year for eastern Ontario, Quebec, and Labrador, 1964 
[ Index numbers in thousands] 
Species 
Stratum 
Total 
Percent 
change 
from 
1963 
Mixed 
boreal 
Main 
boreal 
Open 
boreal 
Forest 
tundra 
Tundra 
Previous 
year 
Current 
year 
Broods: 
Duck brood index- 
2 
37 
5 
1 
1 
150 
46 
-69 
Average brood size- 
5.33 
5.46 
4.83 
4.75 
3.00 
5.24 
5.04 
-4 
Late nesting index: 
Dabblers: 
Mallard- 
1 
4 
— 
— 
— 
4 
5 
+25 
Black duck- 
1 
28 
9 
1 
2 
34 
41 
+21 
Gadwall- 
— 
— 
— 
— 
Trace 
— 
Trace 
+ 
Green-winged teal- 
1 
4 
Trace 
— 
Trace 
1 
5 
+400 
Blue-winged teal- 
— 
— 
— 
Shove ler -- -- 
Pintail- 
— 
— 
Trace 
— 
Trace 
1 
1 
— 
Subtotal- 
3 
36 
10 
1 
3 
40 
53 
+25 
Divers: 
Redhead - — — — — — — — — — — — 
Canvasback- 
Trace 
— 
— 
— 
— 
_ 
Trace 
_ 
Scaup- 
2 
13 
1 
— 
1 
6 
17 
+183 
Ring-necked duck- 
1 
1 
— 
— 
— 
1 
2 
+100 
Goldeneye- 
Trace 
3 
1 
— 
— 
1 
4 
+300 
Bufflehead- 
— 
— 
— 
— 
— 
1 
— 
-100 
Ruddy duck- 
Trace 
— 
— 
— 
-- 
— 
Trace 
— 
Subtotal- 
4 
17 
2 
— 
1 
9 
24 
+167 
Miscellaneous: 
Scoter- 
— 
1 
4 
1 
1 
6 
7 
+17 
Merganser- 
4 
31 
12 
1 
2 
49 
50 
+2 
Subtotal- 
4 
32 
16 
2 
3 
55 
57 
+4 
Total ducks- 
11 
85 
28 
3 
7 
104 
134 
+29 
Goose brood index- 
— 
— 
7 
5 
9 
57 
21 
-63 
Average goose brood size- 
— 
— 
4.96 
3.29 
3.71 
3.39 
3.93 
+14 
Late nesting index- 
— 
3 
3 
3 
4 
18 
13 
-28 
94 
