Bul. 1268, U. S. Dept. of Agriculture PLATE | 
FIG. |.—SPRING-POLE TRAP 
Duck station at Cuivre Island, Mo., operated by L. V. Walton 
B24074 
FiG. 2.—AUTOMATIC PEN-TRAP 
Duck station maintained at the Sanganois Club, Browning, IIl., by the writer. The trap 
contained 93 mallards, pintails, and black ducks when this picture was taken 
