66 



BULLETIN 862, U. S. DEPARTMENT OF AGRICULTURE. 



Table II. — Items of animal food identified in the stomachs of the ducks treated in this 

 bulletin and number of stomachs in which found — Continued. 



Kind of food. 



Gad- 

 wall. 



Bald- 

 pate. 



Green- 

 winged 

 teal. 



Blue- 

 winged 

 teal. 



Cinna- 

 mon 

 teal. 



Pin- 

 tail. 



Wood 

 duck. 





417 



255 



653 



319 

 3 



41 



790 





Class Pelecypoda — Continued. 

 Cyrenidae — Continued. 















1 













2 







Tellinidae. 



Tellina sp 











1 



1 

 1 



3 



71 



1 

 2 

 2 



1 



5 



7 



1 





Macoma sp 















Angulus sp '. 















Myidae. 



Sphaenia ovoidca 















Class Gastropoda (Univalves). 

 Unidentified 



5 



24 









9 



Hydrobiidae. 



Bythinella monroensis 













i 



























Acmaeidae. 















Tornatinidae. 















Pleurotomidae. 















Amnieolidae. 























2 



















1 







1 



















... 3 





1 

 1 





Physidae. 





3 



2 



1 

 3 



2 



1 

 1 







■ 







1 









3 



1 



Lymnaeidae. 













1 













1 













1 





1 













1 

 J 

 2 

 4 

 4 

 1 













































3 

 1 

















2 





1 



3 







1 



.2 

 1 

 2 





Nassidae. 











































