NEVADA =- Continued 
Production Indices 
Brood surveys to determine production trends of ducks on the res-= 
ervoirs of northern Nevada indicate an increase in production of about 40 
percent. Good water conditions during the past two seasons have benefited | 
production considerably in this area and good recovery is being made fol- 
lowing the setback caused by drought during 1954, 1955 and 1956. Average 
size of all broods classified to date is 6.5. The average brood size last 
year was 6.8 birds. 
Geese; Production of Canada geese in Nevada showed very little 
change from last year with the exception of a slight increase in the 
northern portion of the State. Ruby Lake National Wildlife Refuge reported 
a slight increase in goose production this year. Total production of 
Canada geese is estimated at 1,500 birds. The moulting population of 
Canada geese at Pyramid Lake was up 29 percent over last year. The 3,500 
moulting geese at Pyramid Lake this year is the highest figure on record. 
Conclusions 
Breeding pair counts and early brood surveys indicate an increase 
in duck production of about 35 percent for the entire State. Production of 
Canada geese was somewhat higher than normal with total production esti- 
mated at 1,500 birds. 
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