TABLE A-8.--Number of birds observed, by species, Mississippi Flyway 
extended, winter survey, 1963 and 1964. 
1963 
1964 
Species 
Number 
Percent 
Number 
Percent 
id belli 
change 
Ducks: 
Dabblers: 
Mallard- 
2,733,263 
31.5 
4,069,648 
32.2 
+ 49.1 
Black duck- 
148,086 
1.7 
218,071 
1.7 
+ 47.2 
Mottled duck- 
32,100 
0.4 
82,200 
0.7 
+156.1 
Gadwall- 
373,396 
4.3 
1,131,181 
9.0 
+203. 0 
American widgeon- 
255,816 
2.9 
614,445 
4.9 
+140.2 
Green-winged teal- 
509,632 
5.9 
1,298,557 
10.3 
+154.8 
Blue-winged teal- 
222,510 
2.5 
421,431 
3.3 
+ 89.4 
Shove ler- 
264,545 
3.0 
349,505 
2.8 
+ 32.1 
Pintail - 
729,025 
8.4 
1,416,393 
11.2 
+ 94.3 
Wood duck- 
38,602 
0.4 
— 
— 
— 
Subtotal- 
5,306,975 
61.1 
9,601,431 
76.1 
+ 80.9 
Divers: 
Redhead - 
22,055 
0.2 
26,073 
0.3 
+ 18.2 
Canvasback - 
44,073 
0. 5 
41,388 
0.4 
- 6.1 
Scaup - 
1,684,987 
19.4 
752,086 
6.0 
- 55.1 
Ring-necked duck- 
108,632 
1.2 
129,865 
1.0 
+ 19.5 
Goldeneye- 
34,122 
0.4 
27,719 
0.2 
- 18.7 
Bufflehead- 
2,311 
Trace 
5,361 
Trace 
+132.0 
Ruddy duck- 
20,655 
0.2 
23,056 
0.1 
+ 11.6 
Subtotal- 
1,916,835 
22.1 
1,005,548 
8.0 
- 47.5 
Miscellaneous: 
Eider and scoter- 
5 
Trace 
— 
-100.0 
Oldsquaw- 
9,261 
0.1 
2,595 
Trace 
72.0 
Merganser- 
65,207 
0.7 
98,829 
0.9 
+ 51.6 
Subtotal- 
74,473 
0.8 
101,424 
0.8 
+ 36.2 
Unidentified- 
14,801 
0.2 
154,875 
— 
— 
Total ducks- 
*» 
7,313,084 
84.2 
10,863,278 
86.1 
+ 48.6 
Geese: 
Snow goose - 
69,033 
0.8 
87,827 
0.8 
+ 27.1 
Blue goose- 
373,040 
4.3 
369,098 
2.9 
n/c 
White-fronted goose- 
32,150 
0.4 
30,310 
0.2 
- 5.7 
Canada goose- 
437,952 
5.0 
422,513 
3.3 
- 2.9 
Total geese- 
912,175 
10.5 
909,748 
7.2 
- 0.3 
Swans: 
Whistling swan- 
11 
— 
— 
— 
— 
Mute- 
183 
— 
— 
— 
— 
Total swans- 
194 
— 
— 
— 
— 
Coots- 
452,324 
5.2 
852,052 
6.7 
+ 88.4 
Grand total- 
8,677,777 
100.0 
12,625,078 
100.0 
+ 45.5 
43 
