TABLE B-9. SOUTH DAKOTA--1979 WATERFOWL BREEDING GROUND SURVEY RESULTS. 

WATERFOWL BREEDING PAIR SURVEY 
(NUMBERS IN THOUSANDS) 

WATERFOWL PRODUCTION SURVEY 
(NUMBERS IN THOUSANDS) 
a 
MAY PONDS 
DUCKS: 
DARBLERS: 
MALLARD 
BLACK DUCK 
GADWALL 
AMERICAN WIGEON 
GREEN-WINGED TEAL 
BLUE-WINGED TEAL 
NORTHERN SHOVELER 
PINTAIL 
SUBTOTAL 
DIVERS: 
REDHEAD 
CANVASBACK 
SCAUP 
RING-NECKED 
AMERICAN GOLDENEYE 
BUF FLEHEAD 
SUBTOTAL 
MISCELLANEOUS: 
OLD SQUAW 
EIDER 
SCOTER 
RUDDY DUCK 
MERGANSER 
SUBTOTAL 
TOTAL DUCKS 
COOTS 
AMERICAN COOT 
GRAND TOTAL 
1979 
367.8 
482.9 
0.0 
147.5 
72.1 
31.4 
1,041.5 
361.7 
318.0 
2,455.1 
Ww 
. 
a 
OoOrorfh ©W 
s 
OF OWN WwWY 
— 
— 
% CHANGE 
FROM 1978 
-14 
1969-1978 
AVERAGE 
381.6 
% CHANGE 
FROM AVERAGE 
-4 
BREEDING POPULATION ESTIMATES 
-10 
N.C. 
-37 
-72 
-52 
-19 
-14 
-53 
-29 
-65 
-54 
-39 
any 
-100 
+250 
-55 
N.C. 
N.C. 
N.C. 
-48 
424.8 
0.0 
160.5 
112.6 
53.4 
736.5 
172.1 
304.3 
1,964.2 
56.3 
9.9 
35.4 
1.8 
103.8 
+14 
N.C. 
-8 
—36 
-41 
+41] 
+110 
+5 
+25 
5 
-16 
+20 
+139 
-100 
+600 
+6 
N.C. 
N.C. 
N.C. 
-66 
-64 
+21 
+157 
+30 
1979 
JULY PONDS 213.3 
DUCK BROOD INDEX 28.7 
AVG. BROOD SIZE 5.146 
% CHANGE 1969-1978 % CHANGE 
FROM 1978 AVERAGE FROM AVERAGE 
-13 247.0 -14 
=3/. 32.4 ~1i 
+19 5.027 +2 
LATE-NESTING INDEXES 
-24 12.8 -42 
N-C. 0.0 N.C. 
-69 7.2 -69 
-30 2.1 —24 
-57 6 -50 
-84 6.2 -87 
-63 «6 -50 
-83 3.1 -77 
-55 32.6 =59 
-100 «8 -100 
-100 el -100 
-100 «2 -100 
N.C. 0.0 N.C. 
N.C. 0.0 N.C. 
N.C. 0.0 N.C. 
-100 1.1 -100 
N.C. 0.0 N.C. 
N.C. 0.0 N.C. 
N.C. ol -100 
-62 2.2 -64 
N.C. 0.0 N.C. 
-62 2.3 -65 
-61 36.0 -61 
ct 
