TABLE B-43. --Waterfowl breeding pairs, Wyoming, 1964 and 1965 
Species 
Number 
of pairs 
Percent change 
from-- 
Total duck 
index 
Percent change 
from-- 
1964 
1965 
1964 
Average 1 
1964 
1965 
1964 
Average 1 
Ducks: 
Dabblers: 
Mallard- 
57, 995 
57, 247 
- 1.3 
42.9 
142,198 
168, 041 
18.2 
65.6 
Gadwall.- 
11, 441 
9,139 
-20.1 
92.4 
27,685 
23, 597 
-14.8 
109.5 
Widgeon- 
5, 680 
9,139 
60.9 
174.1 
13, 486 
29,135 
116.0 
274.3 
Teal.. 
11, 243 
12, 547 
11.6 
72.7 
35,258 
39,638 , 
12.4 
116.4 
Shoveler- 
8, 080 
2, 373 
-70.6 
-40.3 
28, 708 
10, 708 
-62.7 
2.3 
Pintail- 
19, 223 
8,384 
-56.4 
-21.7 
48,555 
23, 091 
-52.4 
-16.0 
Divers: 
Redhead - 
92 
-- 
-77.2 
2,470 
— 
80.7 
Canvasback -- 
648 
247 
-61.9 
-37.9 
1, 550 
510 
-67.1 
-34.9 
Scaup - 
-- 
1, 075 
211.6 
3, 272 
-- 
248.5 
Goldeneye- 
648 
92 
-85.8 
-79.0 
1, 550 
163 
-89.5 
-67.4 
Bufflehead — 
-- 
92 
-- 
163 
— 
Ruddy duck— 
— 
490 
-- 
70. 6 
Miscellaneous: 
Merganser — 
605 
3, 509 
480. 0 
151.4 
1, 210 
9, 281 
677.0 
138.3 
Total ducks — 
115,563 
103,936 
-10 
57 
300, 200 
310, 559 
+3 
67 
Coots- 
-- 
— 
-- 
-- 
1, 504 
6,083 
304.3 
44.7 
* Average is the years 1955-1964. 
