In addition to the two specimens captured in nets, spotted bats 

 were heard on 9 nights at 4 different locations (Fig. 2) . These 

 bats were heard between 2100 hrs and 0100 hr. On several 

 occasions, bats passed over more than once, but it was not 

 possible to determine if this represented more than one bat or a 

 single individual passing through the area more than once. The 

 exception to this was when two bats were obseirved simultaneously 

 at the sewage lagoon on 29 June. 



WATER SOURCES 



Gyp Spring (T. 9 S., R. 27 E., Sec. 33, Carbon Co., MT; 

 elevation: 1400 m) is located on BLM land approximately 1 km 

 north of the Wyoming border at the intersection of the Helt and 

 Gyp Spring roads. The spring was netted seven times between 24 

 June and 9 September. The area surrounding the spring is 

 characterized by 10 m high red-sandstone outcrops. The 

 vegetation surrounding the spring is representative of the Utah 

 juniper-blacksage ecosystem. Bat species diversity was moderate 

 at this site, and relatively few bats were captured. However, 

 nine female Antrozous pallidus were captured at this site (Table 

 4) . Netting was done at the head of the spring. 



TABLE 4. — Bats captured at Gyp Spring 



Species Males Females Total 



Myotis ciliolabrum 18 7 25 



Myotis volans 2 - 2 



Lasiurus cinereus 2 - 2 



Eptesicus fuscus 1 - 1 



Antrozous pallidus - 9 9 



Total 23 16 39 



12 



