Researchers in Uganda say the country's only nesting site of critically endangered Rüppell’s vultures is under threat from hunting, charcoal burning and farming. Two nesting colonies are built on cliff faces in Luku Central Forest Reserve, in Uganda's northwestern Arua district. The district hosts tens of thousands of people displaced by violent conflict in neighboring Democratic Republic of Congo and South Sudan. Many of these refugees, as well as native Ugandans, depend on the reserve to eke out a living, but at great cost to the integrity of its forests and wildlife.