reintroduced since 2004. Calls were made for the plan on controlling the coypu population. By February 2022, coypus spread into the Sava. Protection and human interaction As Serbia is a signatory of the Berne Convention on the Conservation of European Wildlife and Natural Habitats and the Birds Directive, the state is obliged to protect such an abundant bird habitat. In 2010, the League for the Ornithological Action petitioned for the protection of the area, which was accepted by the City Secretariat for Environment which forwarded it to the Institute for Nature Conversation of Serbia. In 2013 they placed Beljarica in the "process of becoming a protected area", as the nature reserve. That way, Beljarica is considered as being protected until the government decides whether it will declare it a reserve or not. Additionally, with the islands of Great War Island and Little War Island, it constitutes the Important Bird Area of the "Sava's mouth into the Danube". In 2015, with changed both the local and state government, city assembly was to vote on declaring the reserve of the "Wetland on the Danube's left bank in Belgrade", which was even envisioned as the core of the future "National Park Belgrade" but the motion was withdrawn before the vote. By 2020, Beljarica grew more known to the citizens, becoming more popular recreational area instead of being known only to ecologists and bird watchers. The visitors to the outer parts of the wetland include cyclists, recreational athletes, dog walkers and excursionists (holidays, picnics, etc.). In June 2021, the city officially started the procedure of protecting the area under the name of "Foreland on Danube's left bank at Belgrade", on roughly . Foreland refers to the land area between the embankment and the river, which is not protected from floods. Two levels of protection were suggested, second and third. Second level would include localities Kubici, Crvenka and Kožara, a total of . Activities and interventions to enhance and revitalize the area will be allowed in this section. Third level protection will cover and all potentially harmed activities will be forbidden in the zone. Protected area will span two municipalities, Palilula and Zemun, at the length of in the north-southeast direction. It is bounded by the settlements and neighborhoods of Vrbovski, Kovilovo, Crvenka, Borča and Krnjača (in the northern direction), and by the Danube (on the south). Belgrade port After General Secretary of the Chinese