COMMON MAMMALS OF WESTERN MONTANA. 



17 



and operated 1,000 traps in 1911. He used 4-foot trap stakes split 

 from waste fence posts, but believes that half laths would be cheaper 



Fig. 6. — " Hole set," made with ordinary outside-spring steel trap. 



and fully as good. (Fig. 7.) He and another man worked one and 

 three-quarter days staking and setting the 1,000 traps the first time, 

 but on another occasion Mr. Haines alone set 500 traps in a day and 



Fig. 7. — Four-foot cedar trap stakes at burrows of Columbian ground squirrels. 



himself tended the whole 1,000 traps. He used nothing but hole sets. 

 One of the unfortunate features of this method of setting traps is 

 that weasels or other squirrel enemies are sure to be caught. 

 24208°-- -Bull. 4S4— 12 3 



