TARLF. B- 4 Southern Alberta--1978 waterfowl breeding ground survey results. 
———— 
aa RFOWL PRODUCTION SURVEY - 
(NUMBERS IN THOUSANDS) _ 
1978 % CHANGE 1968-1977 % CHANGE 
% CHANCE 1968-1977 % CHANGE FROM AVERAGE 
ree FROM 1977 AVERAGE FROM AVERAGE FROMAOT? =—-AMERACE 
7.4 +5 468.6 -24 
6.2 -32 JULY PONDS 35 
MAY PONDS 496.9 ae 7 DUCK BROOD INDEX 131.9 +69 ie ‘ 
AVG. BROOD SIzk 5-470 +15 5.335 
LATE-NESTING INDEXES 
BREEDING POPULATION ESTIMATES 
DUCKS : 
: +34 18.9 +8 
DABBLERS: 823.5 3 1,433.6 -42 nee nt : 0.0 n.c. 
MALLARD on coe oe ee Oy a ag 
mae. 279. ri io ae 3 8.2 +58 6.3 +30 
AMERICAN WIGEON 303.5 +56 es ee 5.3 +8 ae: re 
GREEN-WINCED TEAL 222.3 32 ° is 17.9 +316 9.7 + 
BLUE-WINGED TEAL 393.3 “ag leg es 5.6 nc. 5.8 -3 
NORTHERN SHOVELFR 407.2 sir i 7.8 +129 8.6 =y 
“1,087.6 +215 ra dette rea 74.7 +83 65.2 +14 
"SamtouAh 3,517.1 +14 4,945.7 29 ; 
: +14 1.6 n.c. 
ee 133.8 ~24 re eae ie -68 ip -50 
88.2 -17 75.6 yee 26.0 +67 18.8 +38 
ot oa 463.0 -3 416.4 o 4 Bos = +160 
Ce es 16.3 +112 hoe ee "5 «+150 ry. +150 
AMERICAN GOLDENEYE 37.5 #732 Bae "Rie 9 +50 eo +350 
BUF FLEHEAD 56.9 +73 a 30.9 $56 22.5 +37 
SUBTOTAL 795.7 -1 700.5 +14 : 
MISCELLANEOUS : akan lacs 0.0 n.c. 
0.0 NRc:. 
0.0 D.C ei 0.0 WC 
OLDSQUAW pe k oe aS = ares < oe 
ie 31.2 tee We ue 4.0 +100 5.6 -28 
RUDDY DUCK 85.9 or Pte ee 0.0 nic. al -100 
MERGANSER 10.2 +240 2.8 +264 4.2 +56 6.4 -34 
SUBTOTAL 127.3 +8 ne be 
+73 94.1 +17 
TOTAL DUCKS 4,440.1 +11 oe 3 ae 
COOTS é 
AMERICAN COOT 168.3 -41 S3721 50 
GRAND TOTAL 4,608.4 +7 exllee 8 ri 

TARLE B- 5. Southern Saskatchewan--1978 waterfowl breeding ground survey results. 
_—_c ee 


= = Se 
—= = ee 
WATERFOWL BREED Nt; PAIR SURVEY == ——SS=S~S~STS WATERFOWL PRODUCTION SURVEY 
(NUMBERS IN THOUSANDS) _ 
; = r (NUMRERS_IN THOUSANDS ) 
1978 % CHANCE 
1968-1977 % CHANGE 1978 % CHANGE 1968-1977 % CHANGE 
FROM 1977 AVERAGE FROM AVERAGE FROM 1977 AVERAGE FROM AVERACE 
MAY PONDS 2,076.5 +80 2,030.2 +2 JULY PONDS 851.4 +18 1,083.4 -21 
DUCK BROOD INDEX 130.4 -10 144.2 -10 
AVG. BROOD SIZE 4.731 -11 5.052 -6 
BREEDING POPULATION ESTIMATES LATE-NESTING INDEXES 
DUCKS: 
DABBLERS: 
MALLARD 1,911.3 -33 2,605.6 -27 55.4 -13 66.6 -17 
BLACK DUCK 0.0 TCs 2. ~100 0.0 Tyne 0.0 aller 
CADWALL 818.7 +36 601.2 +36 3267 -5 28.3 +16 
AMERICAN WIGEON 641.5 +39 751.4 ~-15 9.2 +11 14.0 -34 
GREEN-WINGED TEAL B02) +36 327.8 -8 553 +18 9.2 -42 
BLUE-WINCED TEAL 902.4 -45 1,718.7 -47 17.0 —54 24.6 -31 
NORTHERN SHOVELER 426.6 +1 704.2 -39 5:5 -28 12.6 -56 
PINTAIL 961.7 +43 1,808.5 -47 16.2 -33 27.8 -42 
SURTOTAL 5,964.3 -13 8,517.6 -30 141.3 -22 183.1 -23 
DIVERS: 
REDHEAN 
RaW ABRACK eee -19 203.0 -9 57 -22 6.8 -16 
SCAUP 128. -49 21284 -39 3.0 -71 4.8 -38 
RINC-NECKED 526.1 -25 369.6 +42 2155 ey 15.9 +35 
AMERTCAN GOLNENEYE 51.8 +S 25.8 +101 327 +85 1.6 +131 
BUF FLEHFAD 15.8 -78 22.2 -29 As, 3 +67 
SUBTOTAL 58.1 +11 39.5 +47 1.6 -48 2 a7 -24 
OE poten eset, 964.8 -29 872.5 +10 36.0 -21 31.5 +14 
OLNSQUAW 0.0 Ts Coe 0.0 Tait 0.0 ney 0.0 n.c. 
ELDER 0.0 aCe 0.0 ees 0.0 Nac 0.0 n.c. 
Seer Mis 5 a2 -37 4.5 -29 3.0 +100 5 +500 
ye 68.1 -44 98.8 -31 14.1 -18 16.4 -14 
 SURTOTAL Ae) +95 2250 +105 5 val +400 
75.4 -42 105.3 -28 17.6 -5 17.0 +4 
TOTAL DUCKS 7,004.5 -16 9,495.4 -26 194.9 -20 231.6 -16 
COOTS 
AMERICAN COOT 433.6 -1 842.4 -48 
CRAND TOTAL 7,438.1 -15 LO 33:7- <8 -28 
bo 
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