Szukana fraza: [Abstract = "After several decades and numerous attempts to clean the affected portion of the river, it was found out, that the post\-military relics do not obstruct the navigation as it was stated, and moreover they became a part of environment. Today the hulks form dozens of strange shaped islands, covered with plants, which serve as a sanctuary for birds. The colonies of cranes and several nests of American bald eagle have been noted."]