TABLE B-20. - -Dike line breeding pair counts of waterfowl 
on four State refuges, Utah, 1963 and 1964 
Species 
1963 
1964 
Ducks: 
Dabblers: 
Mallard- 
783 
920 
Gadwall- 
673 
783 
American widgeon- 
6 
27 
Green-winged teal- 
24 
126 
Blue-winged teal- 
52 
39 
Cinnamon teal- 
863 
1,042 
Shoveler- 
635 
676 
Pintail-- 
528 
564 
Subtotal- 
3,564 
4,177 
Divers: 
Redhead - 
1,590 
1,819 
Canvasback- 
2 
2 
Scaup- 
15 
18 
Goldeneye- 
1 
Bufflehead- 
1 
2 
Ruddy duck- 
328 
381 
Subtotal- 
1,936 
2,223 
Total ducks- 
5,500 
6,400 
Canada goose- 
187 
155 
TABLE B-21. --Species composition of breeding populations of waterfowl, Utah, 1963 and 1964 
Species 
Northern area 
Southern area 
1963 
1964 
1963 
1964 
Ducks: 
Dabblers: 
Mallard- 
14.2 
16.0 
22.2 
18.3 
Gadwall- 
12.0 
11.6 
10.8 
13.7 
American widgeon- 
0.3 
0.1 
1.5 
2.1 
Green-winged teal- 
0.5 
0.6 
2.0 
11.5 
Blue-winged teal- 
1.0 
0.7 
0.9 
0.8 
Shoveler- 
10.9 
10.9 
7.8 
6.5 
Pintail- 
8.5 
8.0 
16.1 
15.6 
Divers: 
Redhead - 
31.3 
29.4 
17.1 
14.1 
Canvasback- 
0.2 
(2 obs.) 
(1 obs.) 
— 
Scaup- 
0.4 
0.2 
1.6 
1.2 
Ring-necked duck- 
— 
— 
— 
— 
Goldeneye- 
— 
— 
— 
(1 obs.) 
Bufflehead- 
— 
— 
0.2 
0.1 
Ruddy duck- 
5.9 
6.1 
8.1 
4.4 
Total- 
100.0 
100.0 
100.0 
100.0 
64 
