Picture
At this Concord home not only do they have a bad Bat problem, but if you notice in the lower section of the vent, there is a snake that has just ate a baby Bat.  Not only was it neat to witness but we actually got a picture of it.
 
Picture
This Charlotte home had Bats throughout the entire attic space.  Once the Bats are evicted in August we will have to restore all the insulation due to the Bats contaminating it with their guano. Fortunately for this homeowner, their insurance paid for the restoration.