Romania is situated in south-eastern Europe between latitudes 43º 37' 07" north and longitudes 20º 15' 44" east, extending approximately 480 km north to south and 640 km east to west. The country has an area of 237,750 sq km and a population of over 23,000,000 of which 89% are Romanians, 7% Hungarians, 2% Gypsies, with small minorities of Germans, Slovaks, Turks, Russians, Bulgarians, Croats, Tartars, Czechs, Greeks, Jews, Americans, Poles, Albanians. The Carpathian mountains are in the centre of the country. They are bordered on both sides by hills and plateaus ending in the vast plains of the outer rim. Forests cover over a quarter of the country, and the fauna is one of the richest in Europe including wolves, bears, deer, the lynx and the chamois. The Danube makes the southern boundary; before it flows into the Black Sea, it forms a Delta, renowned for its rare species of both local and migratory exotic birds. Countries sharing borders with Romania are: Hungary, Yugoslavia, Bulgaria, Republic of Moldova and Ukraine.