Production Indices - 
Waterfowl production in 1955 experienced a very satisfactory 
beginning. First broods observed were pintails and these made their initial 
appearance immediately after mid-May. Broods of almost all species were 
becoming relatively common in late June. 
It is apparent that average brood size will be excellent this season. 
Broods of all species are frequently seen as Class II, with ten-to twelve 
ducklings per brood. Canvasback reproduction appears to be exceptionally 
satisfactory, both in the number and size of the broods. 
Brood inventories conducted along transects distributed throughout 
the Coteau Region of the State indicate that waterfowl production in 1955 is 
still increasing in late July and if the peak is not reached until mid-August, 
as occurred in 1953 and 1954. 
Conclusion - 
In view of the increased breeding population and evidence of good 
brood production it is estimated that the fall flight from North Dakota will 
be larger than in 1954, although still below average as compared to the past 
five years. 
