TABLE E-31.--Percent lone drakes to lone males during breeding population surveys, 
southwest Manitoba, 1960-63 









Mallard 

and Canvasback 
Year Pintail 
1960---------~------------------- 70 
1961---------------------------- hs 34 ho ee 
1962------------------+---------- 5ST 72 61 KL 
ttt 67 73 73 

TABLE E-32.--Waterfowl breeding populations, by species, southern Manitoba, 1960-63 
Species 1960 1961 1962 1963 Percent change from: 
1962 

Ducks: 
Dabblers: 
Mallard ---------------<++---= -11 
Gadwal1--------------+------- -25 
American widgeon------------ -15 
Green-winged ted]-~-+--------- +41 
Blue-winged teal------------ +51 
Shoveler-------------------- +6 
Pintai]--------------++----- +h 
Subtotal -+---------------- +8 
Divers: 
Redhead --------------------- -21 
Canvasback------------------ -32 
Scaup------<---------------- -4 
Ring-necked duck------------ -65 
Goldeneye------------------- -25 
Bufflehead---~----~----------- -11 
Ruddy duck----------+------- +75 
Subtotal--------+---------- -15 
Miscellaneous: 
Scoter---------------------- h ae ae ie a 
Unidentified------------------ =u 
T 22 22 -- —- 
beens 
128 
