There was a great interview/discussion on bats on the NPR/Diane Rehm show this past Monday.
In case you missed it, here’s the link:
http://thedianerehmshow.org/shows/2011-11-07/declining-us-bat-population
Click on “listen” in the left corner – Audio starts up about 30 seconds in so don’t give up on it (like I did at first) – just let it play and it’ll get rolling at about 30 seconds in.
http://thedianerehmshow.org/shows/2011-11-07/declining-us-bat-population