Greek Marsh Frog

The Balkan frog (Pelophylax kurtmuelleri) also known as the Balkan water frog and Greek marsh frog) is a species of frog occurring in Greece and, to a lesser extent, in Albania, Montenegro, and Serbia.
The species is found across Greece except in the northeastern corner, where P. ridibundus is found instead. In Western Greece it lives along with Pelophylax epeiroticus. It occurs from sea level up to 1000 m, though large populations are not found above 600 m. Small introduced populations live in Denmark, Poland and Italy.
The pictured individual was spotted in Prespa lake, Macedonia, Greece.