Selous Game Reserve: Covering 50,000 sq km (19,300 sq mi), The Selous Game Reserve is one of the largest protected areas in Africa. It is home to some of the largest concentrations of elephant, black rhinoceros, cheetah, giraffe, hippopotamus and crocodile. The birdlife is rich as well with 350 species having been recorded, including the knob-billed duck, the Udzungwa forest patridge and the rufous-winged sunbird.