south of the project area in section 13, T 12 N, R 17 W. The nearest 

 known hibemaculum for Townsend's big-eared bats are located at the 

 Linton Mine and Cramer Creek, approximately 6.2 miles SE of the project 

 area (Montana Natural Heritage Database). Current conservation 

 strategies for this species indicate that a 500-ft radius buffer be installed 

 around mine entrances to partially mitigate for the effects of timber 

 harvest (Pierson et al. 1999). Thus, with the proposed action located 0.92 

 mile distant from the mine entrance, there would be low nsk of direct, 

 indirect, or cumulative effects to this species. 



1.10.2.3.2 Peregrine Falcon (recently de-listed from Federally 

 threatened) 



There is concern that timber harvest activities would disturb nesting 

 peregrine falcons. The nearest known peregrine falcon nest is located 

 approximately 10 miles NW of the affected area. Thus, the proposed 

 action would have low risk of direct, indirect, or cumulative effects to this 

 species. 



1.10.2.4 Other Sensitive Species 



1.10.2.4.1 Coeur d'Alene Salamander 



There is concern that timber harvest activities could affect this species. 

 This species requires waterfall spray zones, talus, or cascading streams. 

 There are no known areas of talus, waterfalls, or splash zones within the 

 affected area. Thus, the proposed action would have low risk of direct, 

 indirect, or cumulative effects to this species. 



1.10.2.4.2 Columbian Sharp-tailed Grouse 



There is concern that timber harvest activities could affect this species. 

 The nearest known population of Columbian Sharp-tailed grouse occurs 

 near Ovando, MT. Thus, the proposed action would have low risk of 

 direct, indirect, or cumulative effects to this species. 



1.10.2.4.3 Common Loon 



There is concern that timber harvest activities could affect this species. 

 The common loon requires lakes and ponds for breeding. The nearest 

 pond or lake is located approximately 1.5 miles NE of the affected area. 

 However, the proposed harvest would occur far enough away from the 

 pond, and during the non-breeding season, so that effects of the proposed 

 activity to this species would be minimized. 



1.10.2.4.4 Harlequin Duck 



There is concern that timber harvest activities could affect this species. 

 Only records of transient individuals exist for this species in this latilong 

 (25B, Montana Natural Heritage Database). This species has been 

 observed 4 miles west, and 7 miles NE of the project area (Montana 



Dirty Ike Salvage Environmental Assessment 1-5 



