Check this site out: http://strobist.blogspot.com/2013/04/bluebirds-and-stink-bugs.html
Described is his set up to photograph Bluebirds with Stink Bugs which are a pest without preditors in his area. As an extra he forwarded his images to local scientists to show visual proof the stink bugs in fact did have natural preditors which should be encourged.
