Trapi-uKj on the Faim. 



409 



Fig. 14. — Diagram to Illustrate the Bakken Prairie-Dog Set, Used 

 Originally by Government Predatory Animal Trappers in Montana. 



Part of a prairie-dog mound is cut away and a stake driven there with a 

 dead prairie dog in front as a hait. A trench is dug on each side, and two 

 traps, chained to the stake, are concealed In the soil just beyond. A ccyotte 

 will not step over a. trench to pick up a prairie dog, but will approach the 

 bait over the smooth surface concealing the (raps. 



