03 
TABLE B-2. Northern Alberta and the Northwest Territories--1977 waterfowl breeding ground survey results. 
le ETE 
WATERFOWL BREEDING PAIR SURVEY — WATERFOWL PRODUCTION SURVEY ~~ = 
(NUMBERS IN THOUSANDS) : ___ (NUMBERS _IN THOUSANDS) 
1977. % CHANGE 1967-1976 % CHANGE 1977 % CHANGE 1967-1976 % CHANGE 
FROM 1976 AVERAGE FROM AVERAGE FROM 1976 AVERAGE FROM AVERAGE 
MAY PONDS Not applicable JULY PONDS Not applicable 
DUCK BROOD INDEX Not applicable 
AVG. BROOD SIZE Not applicable 
BREEDING POPULATION ESTIMATES LATE-NESTING INDEXES 
DUCKS: 
DABBLERS: 
MALLARD 1,260.1 +177 1,106.1 +14 Not applicable 
BLACK DUCK 0.0 ~100 0.1 -100 
GADWALL 83.0 +548 22.8 +264 
AMERICAN WIGEON 827.3 +54 683.2 +21 
GREEN-WINGED TEAL 610.9 +89 632.4 -3 
BLUE-WINGED TEAL 809.7 +388 122.8 +559 
NORTHERN SHOVELER 410.4 +270 146.9 +179 
PINTAIL 817.0 +106 412.5 +98 
SUBTOTAL 4,818.4 +126 3,126.8 +54 
DIVERS: 
REDHEAD 64.3 +270 34.1 +89 
CANVASBACK 49.1] +30 53.4 -8 
SCAUP 3,577.7 +13 3,883.3 -8 
RING-NECKED 198.4 +167 106.4 +86 
AMERICAN GOLDENEYE 139.2 +26 87.7 +59 
BUFFLEHEAD 406.6 +] 436.1 -7 
SUBTOTAL 4,435.3 +16 4,601.0 -4 
MISCELLANEOUS: 
OLDSQUAW 632.0 +10 785.8 -20 
EIDER 0.0 n.c. 0.0 n.c. 
SCOTER 863.4 +28 790.8 +9 
RUDDY DUCK 65.0 +2,854 31.6 +106 
MERGANSER 225.0 +68 61.5 +266 
SUBTOTAL 1,785.4 +29 1,669.7 +7 
TOTAL DUCKS 11 ,039.1 +5] 9,397.5 +17 
COOTS 
AMERICAN COOT 550.0 +1,592 66.4 +728 
GRAND TOTAL 11 ,589.1 +57 9,463.9 +22 

TABLE B-3. Northern Saskatchewan and Northern Manitoba--1977 waterfowl breeding ground survey results. 
WATERFOWL BREEDING PAIR SURVEY WATERFOWL PRODUCTION SURVEY 
___ (NUMBERS _IN THOUSANDS ) a (NUMBERS IN THOUSANDS) _ : 
1977, % CHANGE 1967-1976 % CHANGE 1977. % CHANGE 1964-19743/ % CHANGE 
FROM 1976 AVERAGE FROM AVERAGE FROM 1974 AVERAGE FROM AVERAGE 
MAY PONDS Not applicable JULY PONDS Not applicable 
DUCK BROOD INDEX 132.2 +31 149.8 -18 
AVG. BROOD SIZE 5.441 -12 5.561 -2 
BREEDING POPULATION ESTIMATES LATE-NESTING INDEXES 
DUCKS: 
DABBLERS: 
MALLARD 965.0 -8 1,057.2 -9 33.8 +9] 27.2 +24 
BLACK DUCK 22.0 +528 5.7 +286 0.0 n.c. 6 -100 
GADWALL 65.9 +180 66.3 -] lat eee. 2.0 -15 
AMERICAN WIGEON 249.0 -2 312.1 -20 7.7. +114 6.8 +13 
GREENWINGED TEAL 452.2 +9 283.3 +60 6.1 -19 3.1 +97 
BLUE-WINGED TEAL 440.3 +15 329.9 +33 3.6 +177 2.4 +50 
NORTHERN SHOVELER 87.6 +323 47.0 +86 8 +167 1.3 -38 
PINTAIL 81.1 +13 93.2 -13 1.6 +14 3.6 -56 
SUBTOTAL 2,363.1 +6 2,194.7 +8 55.3 +65 47.0 +18 
DIVERS: 
REDHEAD 50.8 +47 66.4 -23 2 1.5 -87 
CANVASBACK 42.1 +14 48.6 -13 RY} 7 n.c. 
SCAUP 687.3 +2 877.3 -22 18.0 +25 21.0 -14 
RING-NECKED 230.8 -32 338.5 -32 15.5 +163 13.8 +12 
AMERICAN GOLDENEYE 293.8 -24 196.5 +50 3.2 -24 2.0 +60 
BUFFLEHEAD 196.5 -28 175.4 +12 10.2 +12 5.4 +89 
SUBTOTAL 1,501.3 -14 1,702.7 -12 47.8 +42 44.4 +8 
MISCELLANEOUS: 
OLDSQUAW 3.4 +42 .2  +1,600 0.0 n.c. 0.0 n.c. 
EIDER 0.0 n.c. 0.0 Ac. 0.0 n.c. 0.0 n.c. 
SCOTER 83.4 +12 63.2 +32 3.5 +30 2.6 +35 
RUDDY DUCK 9.5 +34 26.9 -65 st = =6-¥¥33 8 -12 
MERGANSER 294.1 +53 240.5 +22 9.2 +48 8.0 +15 
SUBTOTAL 390.4 +42 330.8 +18 13.4 +46 11.4 +18 
TOTAL DUCKS 4,254.8 n.c. 4,228.2 +] 116.5 +53 102.8 +13 
COOTS: 
AMERICAN COOT 366.6 +384 127.0 +189 
GRAND TOTAL 4,621.4 =] 4,355.2 +6 116.5 +53 102.8 +13 
2/1967 and 1972 not included in average. 
[3 

