Table 146 
FOODS OF 9 RUDDY DUCKS FROM TURBID BRACKISH ESTUARINE BAYS 
OF FISHING BAY AND THE NANTICOKE RIVER 



Seeds 11% _( +49) 
Olney three-square ll ( +t-h9) 
Animal Food 100% (66-100) 
Macoma balthica (Pelecypoda) 56 (21-87) 
Mulinia lateralis (Pelecypoda) 4h (13-79) 
Acteocina canaliculata (Gastropoda) li (13-79) 
Chiridotea coeca (Isopoda) 22 ( 2-61) 
Gemma gemma (Pelecypoda) 11 ( +-)9) 
Sayella chesapeakea (Gastropoda) lt ( +¥-h9) 
Gammaridae 11 ( +9) 
1 Collected January-April. Percentage occurrence of foods that made up 5% 
or more of the volume in individual birds. Figures in parentheses show 95% 
confidence limits. 
204 
