Production Indices 
Efforts were again exerted to census Canada 
Utah. No attempt was made to census nonbreeding Shae See faa 
pairs; however, an apparent increase in nonbreeders was observed 
throughout the State. Whether this was an actual increase or simpl 
s fluctuation at the expense of another area is not known. =a 
Time and personnel limitations prevented census of some 
areas covered in 1958. Generally, at least on the major production 
areas, slight increases in broods were noted. Of special importance 
was the 35-brood increase found on Hear River Refuge (see Table 5) 
Vegetative growth, time of day census was taken, water conditions : 
and other factors can cause apparent variations in data from the ( 
reservoir habitats of the central portion of Utah, but such fluctua- 
tions are not considered significant in comparison of yearly data. 
Conclusions 
It is estimated that the duck and goose production in Utah 
will remain approximately the same as last year. 
