Tree Listening

A bijou event that we attended on Sunday was Tree listening at The Vines in Rochester, Kent.  Alex Metcalf has worked out ways of listening to the inner workings of trees - sounds a bit like a gurgling, popping peristalsis.  Now he's working on ways of identifying particular species from their sounds.

The tree we were listening to was a Caucasian Wingnut (Pterocarya fraxinifolia) - quite rare and not one I've seen before.

Wonder what the wood's like?