无毒蛇，水蛇，沿着森林中倒下的树干爬行扭动。大型草蛇在国家公园的野生自然中晒太阳。自然保护区。

omous snake, natrix crawls, wriggles along the trunk of a fallen tree in the forest. A large black snake basks in the sun in the wild nature of a national park. Mating season for snakes in spring. Nature conservation area. Close-up of a snake moving in a zigzag pattern. Habitat of a non-venomous grass snake natrix in the wild. A reptile after hibernation. High quality 4k footage.