| January
through June (Maximum count totals = 13,099) |
|
Maximum Count
|
Latitude (°N)
|
Longitude (°W)
|
Location |
|
1350
|
29.70
|
94.60
|
Chambers County, Texas |
|
1342
|
26.30
|
97.40
|
Laguna Atascosa National
Wildlife Refuge, Texas |
|
1127
|
36.70
|
98.20
|
Salt Plains National Wildlife
Refuge, Oklahoma |
|
873
|
29.10
|
95.20
|
Brazoria National Wildlife
Refuge, Brazoria County, Texas |
|
488
|
38.30
|
98.80
|
Cheyenne Bottoms Wildlife
Management Area, Kansas |
|
450
|
29.90
|
95.90
|
Rice fields in Harris County
and Waller County, Texas |
|
417
|
28.20
|
96.60
|
Matagorda National Wildlife
Refuge, Texas |
|
390
|
29.50
|
94.60
|
Bolivar Flats, Texas |
|
324
|
51.90
|
104.10
|
Quill Lakes, Saskatchewan |
|
318
|
44.00
|
96.90
|
Milwaukee Lake, South Dakota |
|
314
|
44.30
|
97.50
|
Lake Thompson, South Dakota |
|
305
|
(See Appendix
Legend)
|
Great Salt Lake area, Utah,
single site analysis |
|
300
|
28.70
|
96.10
|
Mad Island Wildlife Management
Area, Texas |
|
275
|
29.30
|
89.90
|
Grand Terre Island, Jefferson
Parish, Louisiana |
|
275
|
28.90
|
95.60
|
San Bernard National Wildlife
Refuge, Texas |
|
260
|
28.90
|
95.10
|
San Luis Pass, Galveston
Island, Texas |
|
241
|
44.00
|
97.00
|
Wentworth Lake, South Dakota |
|
207
|
30.20
|
92.30
|
Between Duson and Crowley,
Louisiana |
|
206
|
28.10
|
97.10
|
Near Aransas National Wildlife
Refuge including Copano Bay, Texas |
|
200
|
40.10
|
95.30
|
Big Lake State Park, Missouri |
|
169
|
41.10
|
112.00
|
Layton Marsh, Great Salt
Lake, Utah |
|
169
|
44.70
|
97.00
|
Dry Lake B, Clark County,
South Dakota |
|
146
|
44.30
|
97.40
|
Lake Thompson, South Dakota |
|
130
|
29.60
|
94.60
|
Anahuac National Wildlife
Refuge, Texas |
|
104
|
26.20
|
97.20
|
South Padre Island, Texas |
|
87
|
36.20
|
94.10
|
Springdale, Benton County,
Arkansas |
|
78
|
41.70
|
113.00
|
Locomotive Springs, Great
Salt Lake, Utah |
|
74
|
36.70
|
95.60
|
Oolagah Reservoir, Nowata
County, Oklahoma |
top of page
| July
through December (Maximum count totals = 5,775) |
|
Maximum Count
|
Latitude (°N)
|
Longitude (°W)
|
Location |
|
1250
|
38.30
|
98.80
|
Cheyenne Bottoms Wildlife
Management Area, Kansas |
|
797
|
51.90
|
104.10
|
Quill Lakes, Saskatchewan |
|
250
|
53.30
|
112.50
|
Beaverhill Lake, Alberta |
|
250
|
38.80
|
90.50
|
St. Charles, Missouri |
|
171
|
30.20
|
92.30
|
Between Duson and Crowley,
Louisiana |
|
162
|
26.30
|
97.40
|
Laguna Atascosa National
Wildlife Refuge, Texas |
|
160
|
48.00
|
97.10
|
Grand Forks Lagoons area,
North Dakota |
|
143
|
29.10
|
95.20
|
Brazoria National Wildlife
Refuge, Brazoria County, Texas |
|
130
|
28.90
|
95.60
|
San Bernard National Wildlife
Refuge, Texas |
|
120
|
29.50
|
94.60
|
Bolivar Flats, Texas |
|
107
|
51.10
|
107.10
|
Luck Lake, Saskatchewan |
|
100
|
48.60
|
100.70
|
J. C. Salyer National Wildlife
Refuge, North Dakota |
|
78
|
51.10
|
105.20
|
Last Mountain Lake, Saskatchewan |
|
75
|
36.70
|
98.20
|
Salt Plains National Wildlife
Refuge, Oklahoma |
|
70
|
47.20
|
98.90
|
Arrowwood National Wildlife
Refuge, North Dakota |
|
60
|
46.90
|
96.80
|
North Dakota State University,
Fargo, North Dakota |
|
56
|
43.30
|
94.10
|
Union Slough National Wildlife
Refuge, Iowa |
|
53
|
39.40
|
119.10
|
Lahontan Valley, Nevada |
|
53
|
28.20
|
96.60
|
Matagorda National Wildlife
Refuge, Texas |
|
52
|
47.90
|
97.40
|
Grand Forks County, North
Dakota |
|
50
|
36.70
|
95.60
|
Oolagah Reservoir, Nowata
County, Oklahoma |
|
50
|
47.60
|
101.20
|
Audubon National Wildlife
Refuge, North Dakota |
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|