Table 87 
FOODS OF 57 AMERICAN WIDGEONS FROM BRACKISH ESTUARINE BAYS OF THE 
CHESTER RIVER-EASTERN BAY AREA+ 
Leaves, Stems and Rootstalka 
of Submerged Aquatic Plants 98% (91-100) 
Claspingleaf Pondweed 70% (56 -82) 
Eelgrass 53% (30 -67) 
Widgeongrass 47% (33 -70) 
Common Waterweed 11% ( 3 -22) 
Sea~lettuce 4% ( + -13) 
Sago Pondweed 2 ( + ~ 9) 
Southern Naiad 2h ( + = 9) 
Enteromorpha 2 ( + - 9) 
Filamentous Green Algae oe ( + - 9) 
Leaves of Emergent Marsh Plants | 26 ( +- 9) 
Saltmarsh Cordgrass 2 ( + = 9) 
Seeds _5é ( 1 -15) 
Claspingleaf Pondweed 4% ( * -13) 
German Millet 22 ( + - 9) 
Grain 2% ( + = 9) 
Corn 26 ( + = 9) 
Animal Food _26 ( + - 9) 
Macoma belthica (Pelecypoda) 2% ( += 9) 

1 Collected November—January. Percentage occurrence of foods that made up 
5¢ or more of the volume in individual birds. Figures in parentheses show 95% 
eonfidence limits. 
148 
