Chestnut Sac-winged Bat
Cormura brevirostris 
Size: body=5 cm; weight=9 g 
Description: Medium-sized chestnut brown with glandular sacs extending to the edge of wing in front of elbows. Wing membrane attaches near base of toe. 
Activity: Nocturnal. Begins to forage in the early evening. 
Habits: Feeds on small insects. Roosts in large rotting logs and in tree hollows in small groups. Roosting individuals may stack up on top of each other. 
Habitat: Lowland rainforest. Open spaces near the edge of forest or over water. Often seen fluttering over the road through Iwokrama Forest. 
Status: Locally common. In Iwokrama this is the most commonly encountered bat roosting in large fallen logs. 
Distribution in Iwokrama