
oi 
TABLE B-2, Northern Alberta and the Northwest Territories--1978 waterfowl breeding ground survey results. 
a ee one eRe ee es 
WATERFOWL PRODUCTION SURVEY ° 
aa WATERFOWL BREEDING PAIR SURVEY ~~~ 
(NUMBERS IN THOUSANDS) 
1978 % CHANCE 1968-1977 
% CHANGE 
1978 
NUMBERS IN THOUSANDS 
% CHANCE 19 -19 % CHANGE 
FROM 1977 AVERAGE FROM AVERAGE FROM 1977 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 1,101.9 -12 dh, VHaeeo -4 Not applicable 
BLACK DUCK 0.0 n.c. 0.0 ns cy 
CADWALL 36.4 -56 30.2 +20 
AMERICAN WIGEON 9332 +S 716.9 +30 
GREEN-WINGED TEAL 962.6 +58 631.8 +52 
BLUE-WINGEN TEAL 396.3 -51 VO7285 +101 
NORTHERN SHOVELER 100.0 -76 LWA caf; -42 
PINTAIL 381.1 -53 470.8 -19 
SUBTOTAL i ie Si bes -19 353624 1 +16 
DIVERS: 
REDHEAD 81.8 +27 352.3 +132 
CANVASBACK ale} -35 54.8 -43 
SCAUP 3,395.4 -5 3,898.2 -13 
RING-NECKED 151.4 -24 113.0 +34 
AMERICAN GOLDENEYE 226.8 +63 92.4 +145 
BUFFLEHEAD bis 7 ah +36 441.7 +25 
SUBTOTAL 4,438.8 TsCn 4,635.4 -4 
MISCELLANEOUS: 
OLDSQUAW 587.7 -7 719.3 -18 
EIDER 0.0 Nie Cs 0.0 eee 
SCOTER 1, 32.3 +29 811.4 +37 
RUDDY DUCK 16.9 -74 35es7 -53 
MERGANSER 268.7 +19 74.6 +260 
SUBTOTAL 1,985.6 +11 1,641.0 a | 
TOTAL DUCKS 10,335.9 -6 9,638.5 +7 
COOTS 
AMERICAN COOT 832 -85 119.8 -30 
10,419.1 
GRAND TOTAI, 

See a ee 
WATERFOWL BREEDING PAIR SURVEY 

~ WATERFOWL PRODUCTION SURVEY 


= = 
3 2 2 


_(NUMBERS IN THOUSANDS ) ‘NUMBERS IN THOUSAN S) 
ie D 
1978 % CHANCE 1968-1977 -y cua 
4 CHANCE 1978 % CHANGE a/ 
FROM 1977 AVERAGE FROM AVERACE FROM Jose oe eee 
MAY PONDS < 
Not applicable JULY pONps Not applicable 
DUCK BROOD INDEX 100.8  _o4 148.1 ~32 
AVG. BROOD SIZE 5.293 3 5.549 ae 
BREEDING POPULATION ESTIMAT;« 
LATE-NESTING INDEXES 
DUCKS: "i 
DABBLERS: 
MALLARD 1,331.7 +38 
332. 1,020.8 +30 
BLACK puck 8.4 ~62 ogee 465 =e me ate ia 
CADWALL, 62.1 ~%6 62.3 ~32 - ie? f pees 
AMERICAN WIGEON 366 .3 447 319 .3 +15 x Fy ae a 
CREEN-WINGED TEAL 920.0 4103 308.5 +198 BY = a zi 
BLUE-WINGED TEAr, 399.6 -9 351.5 414 “@. Be 5, ae 
NORTHERN suovgisp 46.6 -47 51.4 ~9 + he < ee 
ee 108.8 $34 95.5 $14 Z eed 7 a 
3,223.5 +36 2,214.1 +45 61.5 +1 ie pe 
+2 
DIVERS: 
REDHEAD 32.6 36 
. = 59.0 = 
CANVASBACK 30.8 ~27 45.7 ae of 8 - ni 
aes = 849.4 +24 875.1 3 a4 oR ‘is ae 
329.3 +43 334.3 4 ¥ oe ie 
AMERICAN COLDENEys 185.1 37 223.6 a1 re Bs Pal aS 
BUF FLEHEAD 244.7 +24 186.1 +31 2 eS 3% 54 
SUBTOTAL 1,671.9 +11 1,723.8 ~3 ae ae «> a 
a ef ~42 
MISCELLANEOys: 
OLDSOUAW 0.0 100 
. “B -100 
EIDER oe 1S 
scat ee MsCre 0.0 Thecus 0.0 ar: ai ae 
a ai 68.5 420 0.0 10 oh 
ae 20 15.4 +62 24.8 -38 Lae. cS ae Bo 
ERGANSER 490.6 +67 243.8 +101 9.6 Be ¥ a 
588.3 +51 337.7 +74 10.0 fe 4 ihe i 
TOTAL nuUCKS 5,483.7 + ; 
,483. 29 4,275.6 +28 
97.6 xis 104.2 : 
coors 
AMERICAN COOT 84.3 =I? 151.4 44 
GRAND TOTAL 5,568.0 +20 4,427.0 +26 
a 
21587, 1979 and 1975 not included in average, 
ee 

SG 
