
Table II, - Aerial Survey - Columbia Valley. 
1950 1951 1952 1953 1954 
Ducks per square mile 19.9 10.1 12.0 19,5 26.2 
Canada geese per square mile 20.1 17.4 19.7 25.3 19,0 
Canada geese 1,612 1,395 1,575 2,025 1,528 
Snow geese = - = ~ 12 
Whistling swan ; Z 10 1 1 29 
Mallard 773 402 445 576 309 
Baldpate 167 83 155 103 115. 
Green-winged teal 24 - 15 - 2 
Blue-winged teal 83 7 - - 28 
Canvasback 27 3 - 10 8 
Scaup 18 9 53 3 143 
Golden-eye 79 97 65 91 69 
Bufflehead 2 21 9 18 75 
Others 49 33 88 49 47 
Unidentified 376 135 130 705 1,276 
Total Ducks 1,598 790 . 960 1,555 2,101 
The ground survey in the Cariboo Parklands was carried out during mid-May. 
The total number of ducks tallied was down about 11 percent fram 1952 - the last 
year in which a ground count was made. Mallards were primarily respmsible for 
this decrease. All other species appeared in about the same numbers as in 1952. 
The data obtained are shown in Table III. 
Table III. - Compartive Counts - Cariboo Parklands - Spring. 
Species 1946 1947 1949 1950 1951 1952 1954 
Whistling swan - - - - 1 - - 
Canada goose - - - - - 2 
Mallard 39 35 10 35 61 107 43 
Pintail 12 15 ] 19 10 18 20 
Baldpate 73 56 13 28 53 41 38 
Gadwall - - - - - 2 2 
Green-winged teal . 7 19 2 5 11 19 - 
Blue -winged teal - - - - 31 12 2 
Shoveler 5 9 2 5 12 15 12 
