Ultrasonic recording made in the surroundings of the sanctuary of Arantzazu. The main activity that reflects the recording comes from several common european bats or Pipistrellus pipistrellus emitting their echolocation signals around 45,000 kHz, far away from the limit of human hearing.
Xabier Erkizia
2014-07-28
gipuzkoa, animaliak, enarak, xaguzaharrak, ekolokazioa, ultrasoinuak, debagoiena