
Table 15 
i 
SAMPLE COUNTS OF WATERFOWL ON TWO INTERIOR IMPOUNDMENTS (TOTALING 95 ACRES) 
ON THE PATUXENT WILDLIFE RESEARCH CENTER 
SS 
Oct.26, Nov. 5; Nov. 28; Dec .19, Dec.27; Jan.22, Feb. 26, Mar.6, Apr.7, Apr.15, 

1955 1955 1955 1959 1954 1955 1959 1955 1954, 1954 
Canada Goose 150 105 145 230 2h 0 180 3h 30 
Blue Goose 1 l 
Mallard 38 1y2 200 250 130 330 30 132 20 2 
Black Duck ho 2h 25 350 55 87 25 39 2h 10 
Gadwall 5 1 3 2 
Pintail 2 3 1 21 
Green-winged Teal 6 26 2 1 3 
American Widgeon 1 15 3 22 9 
Wood Duck 1. 1 a 5 
Redhead 2 6 12 2 1 
Ring-necked Duck 26 68 200 430 10 hs 250 1,88 10) Lo 
Canvasback 3 
Lesser Scaup 3 
Bufflehead 2 
Ruddy Duck 18 2 1 3 
Hooded Merganser 13 12 3 h 1 
American Coot 8 8 
Total Waterfowl 269 389 588 1,300 220 505 500 688 223 110 
Waterfowl per 
Square Mile 1,813 2,622 3,963 8,762 1,483 3,40) 3,370 4,637 1,503 7h1 

88 
