Waterfowl Population Summary
Tennessee National Wildlife Refuge
Refuge Total
Fall 2009/Winter 2010
| 10/16/2009 | 11/1/2009 | 11/16/2009 | 12/1/2009 | 12/16/2009 | 1/1/2010 | 1/16/2010 | 2/1/2010 |
2/16/2010 |
|
to |
to |
to |
to |
to |
to |
to |
to |
to |
|
| 10/31/2009 | 11/15/2009 | 11/30/2009 | 12/15/2009 | 12/31/2009 | 1/15/2010 | 1/31/2010 | 2/15/2010 |
2/28/2010 |
|
| Tundra Swan | 1 |
1 |
|||||||
| Trumpeter Swan | |||||||||
| Total Swans | 0 |
0 |
0 |
0 |
1 |
1 |
|||
| Canada Goose | 526 |
1,110 |
1,505 |
5,757 |
10,466 |
7,384 |
|||
| Cackling Goose | 200 |
200 |
300 |
900 |
|||||
| White-fronted Goose | 190 |
450 |
500 |
480 |
700 |
||||
| Snow Goose | 5 |
5 |
6 |
||||||
| Ross's Goose | 2 |
3 |
|||||||
| Total Geese | 526 |
1,302 |
2,158 |
6,462 |
11,251 |
8,990 |
|||
| Mallard | 9,342 |
21,978 |
48,997 |
130,411 |
103,907 |
88,008 |
|||
| Black Duck | 99 |
506 |
1,533 |
6,352 |
7,130 |
3,730 |
|||
| Gadwall | 12,216 |
13,979 |
14,670 |
25,038 |
14,706 |
14,065 |
|||
| American Wigeon | 3,042 |
3,945 |
3,685 |
5,960 |
3,280 |
4,319 |
|||
| Pintail | 4,635 |
3,190 |
5,125 |
13,210 |
10,769 |
5,615 |
|||
| Green-winged Teal | 6,815 |
6,471 |
4,768 |
3,460 |
2,440 |
4,854 |
|||
| Blue-winged Teal | |||||||||
| Shoveler | 190 |
690 |
550 |
390 |
705 |
460 |
|||
| Wood Duck | 118 |
149 |
104 |
39 |
26 |
||||
| Unidentified Duck | |||||||||
| Redhead | 122 |
270 |
80 |
20 |
20 |
||||
| Ring-necked Duck | 4,225 |
5,120 |
4,500 |
7,064 |
10,863 |
5,100 |
|||
| Canvasback | 250 |
610 |
2,300 |
2,291 |
745 |
||||
| Scaup | 720 |
950 |
2,720 |
2,630 |
1,016 |
883 |
|||
| Common Goldeneye | 10 |
191 |
435 |
154 |
|||||
| Bufflehead | 65 |
183 |
1,466 |
637 |
636 |
520 |
|||
| Ruddy Duck | 690 |
977 |
580 |
790 |
1,924 |
930 |
|||
| Hooded Merganser | 243 |
480 |
1,437 |
1,472 |
194 |
284 |
|||
| Common Merganser | 24 |
12 |
|||||||
| Red-breasted Merganser | 20 |
600 |
110 |
18 |
|||||
| Total Ducks | 42,522 |
58,868 |
91,045 |
200,609 |
160,477 |
129,731 |
|||
| Bald Eagle (Adult) | 2 |
12 |
14 |
20 |
23 |
17 |
|||
| Bald Eagles (Immature) | 7 |
15 |
27 |
29 |
25 |
49 |
|||
| Total Bald Eagles | 9 |
27 |
41 |
49 |
48 |
66 |
|||
| Golden Eagles (Adult) | |||||||||
| Golden Eagles (Immature) | |||||||||
| Total Golden Eagles | 0 |
0 |
0 |
0 |
0 |
0 |
|||
| Common Loon | 168 |
42 |
49 |
15 |
60 |
||||
| American Coot | 13,648 |
6,455 |
750 |
1,135 |
2,102 |
||||
| American White Pelican | 303 |
71 |
404 |
||||||
| 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 | No Survey | 11/6/2009 |
11/24/2009 |
12/4/09 |
No Survey | 1/5/10 |
No Survey |
2/3/10 |
2/17/10 |
| Observer | Wheat | Wheat | Wheat | Wheat | Wheat | Wheat | Wheat | Wheat |
Wheat |
| Change from Last Year Survey During Same Period of Year (Geese) | NA |
-50% |
-12% |
-7% |
NA |
-1% |
NA |
+22% |
-15% |
| Change from 5-Year Average During Same Period of Year (Geese) | NA |
- 55% |
+12% |
-11% |
NA |
+8% |
NA |
+138% |
+87% |
| Change from 10-Year Average During Same Period of Year (Geese) | NA |
-60% |
-1% |
-3% |
NA |
-7% |
NA |
+99% |
+74% |
| Change from Last Year Survey During Same Period of Year (Duck) | NA |
-18% |
-16% |
-20% |
NA |
-1% |
NA |
+84% |
+180% |
| Change from 5-Year Average During Same Period of Year (Duck) | NA |
+ 19% |
-7% |
-15% |
NA |
+19% |
NA |
+124% |
+325% |
| Change from 10-Year Average During Same Period of Year (Duck) | NA |
+ 30% |
+12% |
0% |
NA |
+14% |
NA |
+85% |
+235% |
