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United
States Department of the Interior
Fish and Wildlife Service
Cross Creeks National Wildlife Refuge
Weekly Waterfowl Population Summary
Calendar
Week (Sun.- Sat.): Dec. 29, 2002 - Jan. 4, 2003
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Whistling - Duck
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Ring-necked Duck
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970 |
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Tundra Swan
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Greater Scaup
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|
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Trumpeter Swan
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Lesser Scaup
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|
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Mute Swan
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Oldsquaw
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|
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White-Fronted Goose
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Black Scoter
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|
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Snow Goose
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3 |
Surf Scoter
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|
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Canada Goose
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3,927 |
Common Goldeneye
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|
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Wood Duck
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Bufflehead
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|
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Green-winged Teal
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138 |
Hooded Merganser
|
3 |
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American Black Duck
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1,604 |
Common Merganser
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|
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Mallard
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23,302 |
Red-breasted Merganser
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|
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Northern Pintail
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163 |
Ruddy Duck
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|
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Blue-winged Teal
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|
Adult Bald Eagle
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1 |
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Cinnamon Teal
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Imm. Bald Eagle
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|
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Northern Shoveler
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4 |
Golden Eagle
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|
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Gadwall
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1,306 |
Scaup
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|
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American Wigeon
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870 |
Unknown
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Canvasback
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Redhead
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American Coot
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|
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Geese
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Ducks
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Coots
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Swans
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Total
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3,930 |
28,360 |
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Preceding Week (%change)
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+83% |
+86% |
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Preceding Year
(%change)
|
24% |
40% |
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|
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10 Year Average (%change)
|
-45% |
-21% |
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NOTE:
%change = difference divided by former population level.
Supplementary Information
Waterfowl Activity: This survey had the best refuge
waterfowl
distribution observed so far this year. Out of 16 impoundments & 2
reservoirs waterfowl were observed in 17 units. Over the past 2 weeks
several hundred birds been recorded in Pool 8 which was unusually high.
Hunting Pressure and Success: No Data.
Weather: Weather was mostly warmer than average with afternoon high in
the 50's. Refuge experienced rain 4 out of 7 days this week, with rains
sometimes heavy.
Habitat: Recent rains have brought the Pool 8 to higher elevation than
is
typically reached. It is assumed that the extra water is the major
factor
contributing to the increased waterfowl recorded in Pool 8. Steady rains
half shallowed Pool 7 again resulting in good waterfowl use about 50% of
the ducks recorded on this survey were observed in Pool 7.
Census Technique: Census complete X Census was a sample
Percentage of population covered
Observation was based on Ground counts.
Census Date: Jan 3, 2003
Reported by: Walter H. Neasbitt, Refuge Mgr.
Linda Green
Cross Creeks NWR
931.232.7477
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