Table 118 
FOODS OF 9 GREATER SCAUP FROM BRACKISH ESTUARINE BAYS OF 
THE CHOPTANK RIVER, EASTERN BAY, AND CHESTER RIVER? 
Leaves, Stems and Rootstalks of 
Submerged Aquatic Plants 33% (7-71) 
Eelgrass 22 (2-61) 
Zosteraceae (sp.7) Ll (+#-19) 
Grain (bait) 22% (2-61) 
Corn 22 (2-61) 
Seeds 22% (2-61) 
Widgeongrass 22 (2-61) 
Animal Food 100% (66-100) 
Mulinia lateralis (Pelecypoda) li (13-79) 
Brachidontes recurvus (Pelecypoda) 22 ( 2-61) 
Bittium varium (Gastropoda) 22 ( 2=61) 
Macoma balthica (Pelecypoda) r li ( +-h9) 
Odostomia impressa (Gastropoda) ll ( +-l9) 
Ilyanassa obsoleta (Gastropoda) In ( +-9) 
Laevicardium mortoni (Pelecypoda) 11 ( +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% 
confidence limits. . 
178 
