TABLE B-2. —Waterfowl breeding population index, by species and stratum, 
Alaska, 1963 and 1964 
Species 
Stratum^ I 
{ Stratum n 
Total 
Percent 
change 
1963 
1964 
' 1963 
1964 
1963 
1964 
Dabblers: 
Mallard - ; - 
24,450 
20,350 
58, 700 
46, 640 
83,150 
66, 990 
-20 
Gadwall- 
— 
750 
— 
— 
— 
750 
— 
American widgeon -- 
6, 800 
12, 050 
19, 800 
23, 630 
26, 600 
35, 680 
+34 
Green-winged teal - - 
1, 600 
3, 000 
tr 
7,460 
1, 600 
10, 460 
+554 
Shoveler- 
1, 600 
3, 600 
7, 460 
5,200 
7, 460 
+43 
Pintail- 
186, 000 
207, 830 
191, 900 
170, 930 
377,900 
378, 760 
no change 1 
Subtotal- 
220, 450 
243, 980 
274, 000 
256,120 
494, 450 
500, 100 
+4 
Divers: 
i 
Canvasback- 
" 
— 
16, 900 
11, 200 
16, 900 
11, 200 
-34 
Scaup- 
1 246, 500 
295,550 
338, 600 
266, 730 
585,100 
562, 280 
-4 
Goldeneye- 
1 2,900 
6, 000 
7,300 
2,500 
10, 200 
8, 500 
-16 
Buffi ehead- 
800 
1,500 
36, 000 
30,470 
36, 800 
31, 970 
-13 
Subtotal- 
250,200 
303, 050 
398, 900 
310, 900 
649, 000 
613, 950 
-5 
Miscellaneous: 
Scoter- 
103, 200 
98,350 
61, 700 
49, 780 
164, 900 
148, 130 
-10 
Eider- 
10, 850 
19, 600 
— 
— 
10, 850 
19, 600 
+80 
Oldsquaw- 
94, 400 
87,450 
tr 
5, 000 
94, 400 
92,450 
-2 
Merganser- 
— 
1, 500 
— 
— 
— 
1, 500 
— 
Subtotal- 
208, 450 
206, 900 
61, 700 
54, 780 
270,150 
261, 680 
-3 
Total- 
679,100 
753, 930 
734, 500 
621, 800 
1, 413, 600 
1, 375, 730 
-2 
TABLE B-3. —Whistling swan breeding population indexes, Alaska, 1958 to 1964 
1958 
1959 
1960 
1961 
1962 
1963 
1964 
Area sampled (sq. mi. )- 
Number counted- 
Population indexes - - 
640 
600 
63, 735 
644 
546 
58, 640 
604 
710 
79,310 
648 
759 
79, 040 
492 
470 
55, 965 
468 
567 
64,000 
414 
481 
50, 400 
52 
