While I'm thinking about it, I thought I'd take a moment to point you all towards our dear friend SIGHUP's Sounds Found repository of field recordings. Ostensibly it hasn't been maintained in two years, but there's still quite a wonderful collection of user-submitted field recordings there, freely available to you for any of your nefarious purposes.
http://soundsfound.sighup.ca/
While you're on the site, check out some of his albums, if you haven't already.
And, as always, caveat emptor, motherfuckers.