-40- 



Long-Tailed Weasel {Mustela frenata) - No individuals were observed on the 

 study area, but they were observed immediately west and north of it. Therefore, 

 it is probable that they occur on the study area. Sightings off of the area 

 were in the badlands type, immediately adjacent to sage-grassland types. Be- 

 cause there were no observations on the study area, this species was listed as 

 uncommon. 



M ule Deer (Odoooileus hemionus) , White Tailed D eer {Odoaoileus virginianus) , 

 Pronghorn (Antilooapra amevioana) - These three species of big game animals 

 occur on the area and can be locally common. White-tailed deer are largely 

 confined to the Yellowstone River bottomlands, areas immediately adjacent to it, 

 and the deciduous coulees to the north of the area. Antelope are generally in 

 the sage-grassland and grassland types. Mule deer are most often observed in 

 badland areas. A detailed description of the game species occurring on the area 

 will be prepared by the BLM after completion of their studies. 



SUMMER SMALL MAMMAL TRAP DATA 



Results of the summer small mammal sampling effort for each major vegetation 

 type, the two subtypes and grassland coulees are presented in Table 6. Tech- 

 niques employed during this study did not effectively record some of the small 

 mammal species known to occur on the area. Species such as kangaroo rats, 

 thirteen-lined ground squirrels and northern pocket golphers were sampled by 

 other means and were discussed in the mammals section of this report. A brief 

 summary of results by vegetation type follows. 



Table 6 . Results of summer small mammal trapping. 



