
Table 1 - Continued. 
=====—=€—«_—_—_—_—CCoooooyooooooooEoaye—————————_——— ee 
Pairs Groups Total 
1955 1956 1957 1955 1956 1957 1955 1956 1957 
Area 

Mud Lake - Camas Nat'l. 
Wildlife Refuge Area 96 108 82 28 19 49 220 235 213 
Gray's Lake Area 124 106 145 43 70 156 291 282 446 
Blackfoot Reservoir Area 54 83 113 198 280 185 306 446 411 
Bear River Drainage 
Dingle Marsh Area 171 140 269 132 197 176 474 477 714 
=—=——_———————————————————————— EE 
Total 1182 1037 1338 976 913 1171 3340 2987 3847 
Production Indices 
Canada goose nesting surveys were continued in several areas 
of the State. The results, as shown in Table 2, do not indicate total estimated 
production. They show population trends based on the number and hatching 
success of nests found on the same areas covered in the same manner each 
year. On this basis, the estimated production on four areas with trend data 
for six years:is 17 percent above last year and 12 percent above the average 
for the previous five years. The estimated production on six areas with 
trend data for four years is nine percent above last year and 11 percent above 
the average for the previous three years. 
Unfortunately, it was not possible to run enough brood trend 
routes this year to justify reporting here. Based on the few that were done, 
and on reports from field personnel, it appears that the duck production is 
at least as high and probably slightly higher than last year. Brood. counts 
on Class III broods indicate average (6.0) survival. 
Conclusions 
It is estimated that there will be an increase.in the fall flight 
of geese from Idaho over 1956. The duck flight will be about the same or 
slightly higher than last year. 
