A recent trip in December 2016 to Poland to the Owl Mountains (Gory Sowie) to make a some recordings. This area of Poland was pointed out to me by Harry Sumner who runs the Sonospace label, based in Spain and London.
There was 2 releases, a sound postcard;
https://www.sonospace.org/portfolio/the-things-we-leave-behind/
And a short release of the field recordings;
https://www.sonospace.org/gory-sowie/