TABLE B-49. —Waterfowl breeding population index, southern Manitoba, 1963 and 1964 
Species 
Stratum 
Total 
Average 
Percent change from 
Previous 
year 
Current 
year 
A 
B 
lyoo uj 
1963 
1963 
Average 
Ducks: 
Dabblers: 
Mallard-- - 
73,800 
93, 200 
182,000 
167,000 
308,000 
-8.2 
-45.8 
Black duck-- 
200 
— 
1,400 
200 
200 
-85.7 
-85.7 
Gadwall-- -- - 
7,700 
3,100 
14,300 
10,800 
7,800 
-24.5 
+38.5 
American widgeon- 
11,400 
8,600 
15,200 
20,000 
22,700 
+31.6 
-11.9 
Green-winged teal- 
300 
— 
4,700 
300 
3,700 
-93.6 
-91.9 
Blue-winged teal- 
33,700 
4, 500 
47,000 
38, 200 
76,800 
-18.7 
-50.3 
Shoveler- 
26, 300 
11,700 
33,300 
38,000 
29,200 
+14.1 
+30.1 
Pintail- 
30,500 
11,100 
61,700 
41,600 
76,800 
-32.6 
-45.9 
Wood duck- 
— 
— 
— 
— 
— 
— 
— 
Subtotal- 
183,900 
132,200 
359,600 
316,100 
525,200 
-12.1 
-39.8 
Divers: 
Redhead-- -- 
13,600 
18,300 
33,800 
31, 900 
20,500 
-5.6 
+55.6 
Canvasback- 
20,700 
17,300 
30,500 
38,000 
30,700 
+24.6 
+23.8 
Scaup--- 
31,100 
41,200 
55,700 
72,300 
74,700 
+29.8 
-3.2 
Ring-necked duck- 
1,200 
600 
6,800 
1,800 
4,700 
-73.5 
-61.7 
Goldeneye--- 
700 
1,100 
1,100 
1,800 
4,000 
+63.6 
-55.0 
Bufflehead- 
1,400 
2,500 
5,400 
3,900 
3,400 
-27.8 
+14.7 
Ruddy duck-- 
10,700 
900 
14,600 
11, 600 
9,300 
-20.5 
+24.7 
Subtotal- 
79,400 
81,900 
147,900 
161, 300 
147,300 
+9.1 
+9.5 
Miscellaneous: 
Scoter - 
100 
500 
400 
600 
500 
+150.0 
20.0 
Merganser-- 
900 
3,100 
— 
4,000 
100 
+4,000.0 
Subtotal -- 
1,000 
3, 600 
400 
4,600 
600 
+1,150.0 
+767.0 
Total ducks -- 
264,300 
217,700 
507,900 
482,000 
673,100 
-5.1 
-28.4 
Geese: 
Canada goose- 
— 
— 
— 
— 
— 
— 
— 
Coots-- - - 
45,000 
11,200 
54,400 
56,200 
56,300 
+3.3 
+3.3 
w Grand total-- - 
309,300 
228,900 
562,300 
538,200 
729,400 
+4.3 
-26.2 
81 
