Table X. - Coastal Tundra between MacKenzie and Anderson Rivers, N. W. T. * 
r e e 2 
1948 1949 1950 1951 1952 Nee oe 
Ducks per square mile 11.5 12,4 17.0 11.3 13.3 22.3 
Est. breeding pop. index 10,350 11,160 15,300 10,170 12,105 20,070 
% change from prev. year + 8 + 37 - 34 + 16 + 68 
Swans per square mile 1.6 1.7 1.8 1,3 243 1.8 
Est. breeding pop. index 1,440 1,530 1,620 1,170 2,070 1,620 
% change from prev. year + 6 + 6 - 28 + 77 - 22 
W-F. geese per square mile 2.0 0.3 2.5 0,5 1,2 67 
-Est. breeding pop. index 1, 800 270 2,250 450 1,080 603 
% change from prev. year - 85 + 733 ~ 80 + 140. - 44 
Percent Species Composition, 1953 
Species Percent Species Percent 
Scoter 45 Pintail 4 
Old Squaw 30 Mallard 2 
King eider 1] Merganser 1 
Scaup 7 
*Estimated area 900 square miles. 
Table XI. - Forest Tundra North of Willow Lake, N. W. T. * 
1948 1949 1950 1951 1952 1953 
Ducks per sq. mile 12.4 8.9 13.2 17.0 25.6 10.4 
Est. breeding pop. index 
pop. index 1,199,923 861,235 1,277,337 1,645,056 2,447,260 1,006, 387 
% change from prev. year - 28 + 48 + 29 + 50.6 - 59 
Swans per square mile «3 4 +2 3 8 ra | 
Est. breeding pop. index 29,030 38,707 19, 353 29, 030 77,414 9,676 
% change from prev. year + 33 - 50 + 50 + 167 - 89 
Canada geese per Sq. mile -- win -- 13 ol . 08 
Est. breeding pop. index -- -- -- 12,580 9,676 7, 741 
F. - 23 - 20 
% change from prev. year -- = = = 
Percent Species Composition, 1953 
Species Percent Species Percent 
Scaup 38,5 Mallard be 4 
Scoter 32.3 Merganser 1,3 
Old squaw 11,0 Canvasback .8 
Baldpate 6.2 Goldeneye 8 
Pintail 4,8 Green-winged teal Ru 
*Estimated area 96,768 square miles, 
