Table 1 - Summary of Duck Breeding Ground Survey - Wyoming, May, 1955 
Species 
Mallard 
Pintail 
B-w & G-w Teal 
Shoveler 
Gadwall 
Baldpate 
Redhead 
Coot 
Barrow's Goldeneye 
Am. Merganser 
Ruddy Duck 
Scaup 
Unknown 
Total 
Sample 
Pairs 
584 
106 
70 
74 
34 
36 
23 
9 
4 
13 
6 
4 
136 
1,099 
Wyoming Area 
Total Area Sampled 
Total Breeding Ground in Sample 
Average Pairs per Square Mile 
Average Ducks per Square Mile 
Total 
1,281 
231 
224 
183 
~ 105 
92 
46 
88 | 
8 
26 
27 
8 
276 
2,595 
Estimated Population 
Total 
Pairs 
29,558 
5, 365 
3,543 
3,745 
1,721 
1, 822 
1,164 
456 
202 
658 
304 
202 
6, 883 
55,623 
97,914 square miles 
54,249 square miles 
2,239 square miles 
49 
1.16 
64, 834 
11,691 
11,337 
9,262 
5,314 
4,656 
2,328 
4,454 
405 
1,316 
1,367 
405 
13,969 
131,339 
With exception of the Snake and Wind River populations which have 
held their own, or increased, geese in the remainder of the State have registered 
a sharp decrease over the past three year period. 
Table 2 - Comparison of Canada Goose Breeding Ground Surveys on 
Identical Areas, 

1953 - 1955 
Number of Total Geese 

Drainage 1953 1954 1955 
Green 336 204 119 
Bear 369 183 270 
Snake 506 267 437 
Wind 13 103 97 
North Platte 509 296 219 
Total 1, 733 1,053 1, 142 
