=a 
TABLE E-7.--Comparative status of waterfowl breeding population indexes by species 
| and stratum, southern Alberta, May, 1962 and 1963 
(Index numbers in thousands |] 
Species 




Percent change 
from: 
l 1962 | Average 
' Ducks: 


| Dabblers: 
Mallard------------------ 6 4 
Gadwall---++-+-------..-. : 20 
American widgeon-----~--- » _ 
} Green-winged teal~------- 1 = 
Blue-winged teal--------- 5 = 
Ghoveler~----------~---.--- 9 ee 
Pinbail----.-.----------.~ 9 Ee 
Subtotal----~--~~-.---- = 
Divers: 
Redhead --~--~---~--~------ 5 
i Canvasback «-------------- 2 
Haaup=- 9 ne seen anne ene ne +8 
Ring-necked duck--------- +8 
Goldeneye---~------------ Bs 
Bufflehead---+-+-.-.-----~ a 
ROBE QiiRG Hams i cnttdin a ainat ms 7 
Subtotal --------------- ; 26 311 =o 
Miscellaneous: 
Seoter~---<----- een n= --- -65 -54 
Total ducks-----«------- 1,292 1,739 1,958 2,535 +13 -23 
‘ Geese: 
: Canada fo0se@-<-~-9--e---e==5 Trace Trace ae a 
1 COMbBenaan~ i: Salim al iar +165 -30 
SS EE ES 
ee 
1 Not calculated at this time. 
TABLE E-~8.--Lone drake index long-term trend expressed as percentage of 
total drakes, southern Alberta, 1954-63 

115 
