Table 20 
| SBECTES COMPOSITION OF WATERFOWL POPULATIONS IN THE LOWER POTOMAC SECTION 
EEE 
January 
Populations: Seasonal Population Changes in 1958-59 
Average (Percentages) 
Percentages, 
1955-58 Oct.2-10 Nov.3-12 Dec.1-12 Jan.7-13 Mar.3-16 
Whistling Swan F 2 3 3 
canada Goose 3 ho 31 2 hb 1 
Mallard + 2 5 3 i: 
‘Black Duck 1 8 2 h 1 
‘Gadwall + + + + 
Pintail + + 
American Widgeon 1 60 38 13 8 6 
‘Wood Duck + 
‘Redhead 12 2 + rn 
Ring-necked Duck 1 + 3 
 canwaabaak 1 i 30 2h 
. Scaup 7 12 23 35 
‘Common Goldeneye 
and Bufflehead 2 20 12 9 
, Oldsquaw 7 2 2 6 + 
Scoters by + 2 “ 1 
Ruddy Duck he 17 18 6 12 
Mergansers 2 + + + 
- American Coot h 1 + 
Unidentified Ducks hy + 
Total Percent 100 100 100 100 100 100 
Total Population 32,200 600 2,100 8,300 20,800 20,000 
93 
