Table 88 
FOODS OF 86 AMERICAN WIDGEONS FROM ESTUARINE BAY MARSHES OF DORCHESTER COUNTY? 
a 

Brackish Estuarine Bay Fresh Estuarine Bay 
Marsh Marsh 
soins = S0rde 3 Barve 3 Birds 
a 
Leaves, Stems and Rootstalks 
of Submerged Aquatic Plants 90% (78-97) 97% (73-98) 100% (29-100) 100% (29-100) 
Widgeongrass 72 (57-84) 90 (73-98) 67 ( 9-100) 67 ( 9-100) 
Muskgrass 28 (16-43) 17 ( 5-35) 100 (29-100) 33. ( +- 91) 
Claspingleaf Pondweed 100 (29~100) 
Sago Pondweed 7 ( +-23) 
Eelgrass 3 ( ¥-18) 
Filamentous Green Algae 2 ( +11) 
Leaves and Rootstalks of 
Emergent Marsh Plants 8% { 2-20) _3% ( +-18) _0| SS. 
Saltgrass ho ( #1) 3 ( +18) 
Saltmarsh Cordgrass kh ( #-1h) 
Seeds _8% ( 2-20) 3% ( +-18) _33% ( +- 91) _0| 
Saltgrass 6 (1-17) 
Widgeongrass 2 (+-11) 3. ( *-18) 33. ( +-91) 
Olney Three-square 2 (+411) 3 ( #18) 
Twigrush 2 ( +11) 
Common Spikerush 2 ( +1) 
Animal Food 0. _3% ( +-18) _9° _33% { +91) 
Bittium yvarium (Gastropode) | 33 ( +-91) 
Hydromedusae 3 ( #18) 

1 Percentage occurrence of foods that made up 5% or more of the volume in individual birds. 
Figures in parentheses show 95% confidence limits. ; 
149 
