Waterfowl Population Summary
Tennessee National Wildlife Refuge
Refuge Total
Fall 2012/Winter 2013
| 11/1/2012 | 11/16/2012 | 12/1/2012 | 12/16/2012 | 1/1/2013 | 1/16/2013 | 2/1/2013 |
2/16/2013 |
|
to |
to |
to |
to |
to |
to |
to |
to |
|
| 11/15/2012 | 11/30/2012 | 12/15/2012 | 12/31/2012 | 1/15/2013 | 1/31/2013 | 2/15/2013 |
2/28/2013 |
|
| Tundra Swan | ||||||||
| Trumpeter Swan | ||||||||
| Total Swans | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Canada Goose | 321 |
1,157 |
996 |
1,757 |
3,185 |
4,190 |
3,506 |
960 |
| Cackling Goose | ||||||||
| White-fronted Goose | 84 |
60 |
380 |
860 |
1,080 |
1,570 |
1,550 |
300 |
| Snow Goose | 40 |
120 |
50 |
60 |
10 |
30 |
||
| Ross's Goose | 7 |
4 |
2 |
20 |
11 |
2 |
1 |
|
| Total Geese | 412 |
1,257 |
1,500 |
2,669 |
4,345 |
5,781 |
5,088 |
1,261 |
| Mallard | 20,485 |
33,971 |
45,370 |
65,725 |
74,586 |
57,994 |
39,654 |
22,150 |
| Black Duck | 233 |
344 |
508 |
621 |
1,404 |
1,450 |
1,076 |
409 |
| Gadwall | 14,473 |
9,082 |
14,246 |
15,041 |
15,430 |
17,470 |
5,176 |
4,922 |
| American Wigeon | 2,400 |
1,406 |
3,776 |
2,995 |
4,198 |
5,062 |
3,140 |
1,898 |
| Pintail | 1,843 |
2,888 |
4,480 |
3,770 |
10,370 |
11,342 |
3,294 |
665 |
| Green-winged Teal | 7,742 |
5,273 |
5,755 |
5,762 |
9,649 |
2,101 |
634 |
395 |
| Blue-winged Teal | 4 |
|||||||
| Shoveler | 550 |
698 |
650 |
1,290 |
1,180 |
1,100 |
874 |
1,042 |
| Wood Duck | 144 |
70 |
47 |
20 |
29 |
12 |
67 |
29 |
| Unidentified Duck | ||||||||
| Redhead | 20 |
170 |
140 |
53 |
100 |
|||
| Ring-necked Duck | 2,078 |
1,823 |
4,690 |
5,700 |
7,865 |
7,847 |
4,222 |
3,997 |
| Canvasback | 50 |
835 |
940 |
1,408 |
874 |
803 |
798 |
|
| Scaup | 690 |
1,423 |
1,735 |
1,609 |
1,575 |
1,371 |
1,162 |
898 |
| Common Goldeneye | 142 |
321 |
117 |
110 |
375 |
109 |
||
| Bufflehead | 51 |
539 |
474 |
401 |
540 |
793 |
449 |
375 |
| Ruddy Duck | 949 |
888 |
1,215 |
1,262 |
1,430 |
2,823 |
2,159 |
1,412 |
| Hooded Merganser | 434 |
1,238 |
1,258 |
521 |
595 |
254 |
30 |
5 |
| Common Merganser | ||||||||
| Red-breasted Merganser | 10 |
21 |
20 |
3 |
||||
| Total Ducks | 52,072 |
59,727 |
85,372 |
106,138 |
130,429 |
110,606 |
63,115 |
39,204 |
| Bald Eagle (Adult) | 21 |
9 |
21 |
30 |
26 |
42 |
26 |
27 |
| Bald Eagles (Immature) | 25 |
18 |
20 |
17 |
13 |
23 |
8 |
15 |
| Total Bald Eagles | 46 |
27 |
41 |
47 |
39 |
65 |
34 |
42 |
| Golden Eagles (Adult) | 1 |
|||||||
| Golden Eagles (Immature) | ||||||||
| Total Golden Eagles | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
| Common Loon | 141 |
135 |
93 |
75 |
27 |
51 |
68 |
6 |
| American Coot | 53,560 |
6,470 |
3,880 |
5,570 |
1,597 |
6,193 |
5,744 |
3,915 |
| American White Pelican | 721 |
125 |
301 |
256 |
||||
| Sandhill Crane | 22 |
36 |
22 |
22 |
||||
| Survey Details | ||||||||
| Type | Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
Aerial |
| Area Coverage | 100% |
100% |
100% |
100% |
100% |
100% |
100% |
100% |
| Date Conducted | 11/7/2012 |
11/19/2012 |
12/3/2012 |
12/17/12 |
1/7/2013 |
1/23/2013 |
2/5/2013 |
2/19/2013 |
| Observer | Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
Wheat |
| Change from Last Year Survey During Same Period of Year (Geese) | -35% |
+4% |
NA |
-15% |
+19% |
+39% |
+13% |
NA |
| Change from 5-Year Average During Same Period of Year (Geese) | -40% |
+13% |
-25% |
-42% |
-38% |
-39% |
-30% |
-86% |
| Change from 10-Year Average During Same Period of Year (Geese) | -45% |
+4% |
-33% |
-36% |
-24% |
-20% |
-18% |
-78% |
| Change from Last Year Survey During Same Period of Year (Duck) | +216% |
-7% |
NA |
-20% |
-11% |
-20% |
-8% |
NA |
| Change from 5-Year Average During Same Period of Year (Duck) | +47% |
-12% |
-19% |
-39% |
-33% |
-44% |
-43% |
-46% |
| Change from 10-Year Average During Same Period of Year (Duck) | +60% |
+1% |
-12% |
-28% |
-20% |
-28% |
-27% |
-21% |
