I went to the Plänterwald / Berlin to record some percussion sounds from trees. A supersensitive Contact Mic was used with a Piezo Preamp and the Zoom H1 Field Recorder. Finally most of the sounds were distorted and i have to check the setup again , the contact mic is awesome.
If you touch the tree on a branch 2-3 meters away you can still hear the deep , wooden sound. I`ll record again with some stones or sticks and better adjustment of the Mic. But there where enough useful sounds to fill a Drumrack in Ableton , check the video for the first result.