The Meadow Viper (Vipera ursinii) is the smallest and the less venomous species of vipers found in Romania.
It is an endangered species and in the Danube's Delta it can be seen in the sandy and arid areas, such as the Portița, Letea and Peridava hills.
The Meadow Viper is a small viper with a thick body... - videoguide.ro/en/meadow-viper-vipera-ursinii-danube-delta.html