Flamingos (IMAGE) University of Helsinki Caption Mountains can act as distribution barriers even for bird species. Flamingos avoid crossing high-altitude mountains Credit Aleksi Lehikoinen Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.