Waterfowl Population Summary
Tennessee National Wildlife Refuge
Duck River Unit
Fall 2010/Winter 2011
| 10/16/2010 | 11/1/2010 | 11/16/2010 | 12/1/2010 | 12/16/2010 | 1/1/2011 | 1/16/2011 | 2/1/2011 |
2/16/2011 |
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to |
to |
to |
to |
to |
to |
to |
to |
to |
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| 10/31/2010 | 11/15/2010 | 11/30/2010 | 12/15/2010 | 12/31/2010 | 1/15/2011 | 1/31/2011 | 2/15/2011 |
2/28/2011 |
|
| Tundra Swan | 2 |
2 |
|||||||
| Trumpeter Swan | |||||||||
| Total Swans | 0 |
0 |
0 |
0 |
0 |
2 |
0 |
2 |
0 |
| Canada Goose | 218 |
557 |
598 |
450 |
2,279 |
4,422 |
3,777 |
3,821 |
4,083 |
| Cackling Goose | 25 |
25 |
400 |
400 |
200 |
200 |
400 |
||
| White-fronted Goose | 130 |
500 |
700 |
600 |
1,300 |
1,200 |
1,310 |
||
| Snow Goose | 8 |
11 |
110 |
50 |
13 |
20 |
110 |
||
| Ross's Goose | 5 |
1 |
3 |
9 |
15 |
||||
| Total Geese | 218 |
557 |
766 |
987 |
3,489 |
5,472 |
5,293 |
5,250 |
5,918 |
| Mallard | 624 |
12,128 |
21,735 |
29,517 |
74,847 |
82,179 |
100,137 |
85,611 |
14,094 |
| Black Duck | 11 |
82 |
388 |
523 |
2,092 |
2,820 |
4,102 |
3,176 |
741 |
| Gadwall | 9,398 |
13,479 |
12,432 |
6,365 |
10,912 |
13,587 |
10,170 |
9,668 |
4,057 |
| American Wigeon | 4,183 |
4,830 |
3,038 |
4,137 |
4,569 |
3,480 |
4,985 |
5,043 |
2,148 |
| Pintail | 1,766 |
3,230 |
5,054 |
5,149 |
5,826 |
11,324 |
8,030 |
6,915 |
1,977 |
| Green-winged Teal | 801 |
1,952 |
7,064 |
7,914 |
6,040 |
9,335 |
9,979 |
7,516 |
8,070 |
| Blue-winged Teal | 10 |
||||||||
| Shoveler | 640 |
243 |
925 |
640 |
931 |
1,539 |
1,750 |
1,955 |
583 |
| Wood Duck | 19 |
152 |
73 |
80 |
104 |
10 |
24 |
29 |
57 |
| Unidentified Duck | |||||||||
| Redhead | 50 |
75 |
120 |
110 |
|||||
| Ring-necked Duck | 1,100 |
4,019 |
1,924 |
4,424 |
3,670 |
2,525 |
1,812 |
185 |
|
| Canvasback | 20 |
192 |
810 |
1,854 |
2,155 |
660 |
1,196 |
700 |
|
| Scaup | 40 |
270 |
538 |
344 |
444 |
130 |
167 |
320 |
|
| Common Goldeneye | 18 |
52 |
24 |
82 |
187 |
12 |
|||
| Bufflehead | 2 |
413 |
505 |
828 |
548 |
222 |
390 |
453 |
|
| Ruddy Duck | 200 |
140 |
262 |
802 |
313 |
240 |
209 |
75 |
|
| Hooded Merganser | 96 |
592 |
753 |
1,270 |
1,109 |
1,021 |
728 |
73 |
|
| Common Merganser | 1 |
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| Red-breasted Merganser | 10 |
2 |
27 |
20 |
6 |
||||
| Total Ducks | 17,452 |
37,554 |
56,395 |
59,212 |
115,015 |
132,565 |
144,077 |
124,608 |
33,655 |
| Bald Eagle (Adult) | 4 |
4 |
5 |
12 |
10 |
19 |
18 |
17 |
|
| Bald Eagles (Immature) | 9 |
1 |
17 |
14 |
35 |
27 |
37 |
37 |
19 |
| Total Bald Eagles | 9 |
5 |
21 |
19 |
47 |
37 |
56 |
55 |
36 |
| Golden Eagles (Adult) | |||||||||
| Golden Eagles (Immature) | |||||||||
| Total Golden Eagles | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Common Loon | |||||||||
| American Coot | 16,200 |
22,800 |
13,775 |
390 |
607 |
340 |
590 |
520 |
|
| American White Pelican | 1,210 |
705 |
430 |
200 |
3 |
25 |
270 |
167 |
|
| Sandhill Crane | |||||||||
| Survey Details | |||||||||
| Type | Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
| Area Coverage | 100% |
100% |
100% |
100% |
100% |
100% |
100% |
100% |
100% |
| Date Conducted | 10/18/2010 |
11/1/2010 |
11/19/2010 |
12/1/2010 |
12/17/2010 |
1/3/2011 |
1/19/2011 |
2/3/2011 |
2/16/2011 |
| Observer | Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |

