Voles (IMAGE) University of Turku Caption Pygmy owls collect and store dozens of small mammals for winter. Pictured here are voles a pygmy owl has stored in a nest-box. Credit Photo: Giulia Masoero Usage Restrictions Please credit the photographer. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.