TABLE F-6.--Trend in July waterfowl brood and late-nesting indexes, by species, southern Alberta, 1953-61 
{Index numbers, in thousands ] 
1953 1954 1955 1957 1958 1959 1960 1961 

- Broods: 
Duck brood index-------- 165 217 285 250 337 377 224 183. 212 
Average brood size?----- 5.51 5.64 5.94 6.04 6.25 6.30 4.85 5.98 5.74 
Coot brood index-------- -- -- 66 62 75 107 29 32 54 
Late-nesting index: 
Dabblers; 
Pintail--------------- 40 6 
Mallard--------------- 38 28 
American widgeon------ 9 5 
Shoveller------------- 5 5 
Gadwal]--------------- 10 & 
Blue-winged teal------ 10 11 
Green-winged teal----- 1 2 
Cinnamon teal--------- -- -- 
Subtotal 
Divers: 
Scaup-----~----------+ 
Canvasback 
Redhead--------------- 
Ringnecked duck 
Goldeneye 1 
Bufflehead -- 
Ruddy duck 6. 3 
Subtotal------------- 27 32 25 23 33 14 7 
Miscellaneous: Scoter--- -- -- Trace -- Trace Trace 1 -- -- 

pinnae |e] el] ef «| «|| =|» 
+ Class II and III broods only. 





TABLE F-7.--Water fowl fall population indexes, Washington, 1960 and 1961 
[Includes young ] 


Percent change 



Ducks: 




Eastern Washington------------ 390, 100 +19 
Western Washington-----~------- 39, 700 
Total-------------------~---- 429,800 518,000 +21 


Canada geese: 
Eastern Washington------------ 





11,000 11,800 
108 
