14 
Table XII. - Old Crow Flats, Yukon Territory * 
1948 1949 1950 1951 1952 1953 
Ducks per square mile 56.2 38,0 43.0 71.1 65.5 30.8 
Est. breeding pop: index 110,714 74,860 84,710 140,067 129,035 60,676 
% change from prev. year - 32 + 13 + 65 - 8 - 53 
Swans per square mile Ste =a i 12 0.1 -- 
Est. breeding pop. index -- -- -- 236 197 -- 
% change from prev. year -- -- -- -- - 17 - 100 
Geese per Square mile 2.4 2.2 1.8 43 a5 . 85 
Est. breeding pop. index 4,728 4,334 3,546 847 650 1,675 
% change from prev. year - 8 - 18 - 76 - 23 + 159 
Percent Species Composition, 1953 

“Species Percent Species Percent 
Scoter 44 Canvasback | me 
Scaup 26 Goldeneye ] 
Pintail 12 Merganser l 
Baldpate 8 Shoveler so 
Old squaw 3 Green-winged teal 2 
Mallard 2 
* Estimated area 1,970 square miles. 
Table XIII. - Brant and Goose Populations on the Deltas of the MacKenzie, Kugaluk, 
and Anderson Rivers, and Cape Dalhousie 

Species _ 1948 1949 1950 1951 1952, :1953 
Snow geese 7,320 2,943 5,390 7, 360 9,489 8,580 
Black-brant oe S79 2,510 2,004 1,294 3,147 1,303 
White -fronted geese 901 825 T,112 120 8 174 
Canada peese 596 567 62 - - fe 
