viewed from the Lost Madagascar Express train, and also from the glass viewing areas. World of Wings An aviary complex that houses three species of birds of prey, Andean condors, great grey owls and king vultures. Other species Other species found in the zoo include Barbary macaques, bush dogs, Chilean flamingos, collared mangabeys, Darwin's rheas, geladas, giant anteaters, L'Hoest's monkeys, Oxford Sandy and Black pigs, Visayan spotted deer and Visayan warty pigs. Woolly Mammoth interactive display In July 2016, the zoo opened a new augmented reality display that gives its visitors the chance to walk with digitally-recreated woolly mammoths. The attraction is located inside the elephant house and is believed to be the first of its kind in a UK zoo. Conservation efforts The zoo has its own charity Action for the Wild to assist projects worldwide. It provides both financial and technical assistance, and aims to raise awareness among local people in community conservation programmes, as well as supporting conservation research around the world. Since 2005, Action for the Wild has been working to set up the 6,000 hectare UmPhafa Private Nature Reserve in KwaZulu Natal, South Africa. Working to rehabilitate the land which was previously managed as separate cattle farms, to return it to a healthy state and to release native animal species back onto the reserve. Many species have been released; these species include zebra, nyala, giraffe, red hartebeest, blesbok, waterbuck, common reedbuck, blue wildebeest and ostrich. Notable former exhibits White Tiger Valley This exhibit used to house Sasha, the zoo's well-known and loved white tiger. Sasha died on 15 December 2010 aged 15. The exhibit underwent extensive work, and re-opened as Lost Madagascar at Easter 2012. Hornbill Hill Hornbill Hill was a steep and narrow pathway that featured enclosures for Waldrapp ibis, southern ground hornbill, black hornbill, red-billed blue magpie and at the top of the hill there is an enclosure that has previously held snow leopard, fossa, giant anteater and various New World monkeys and an African aviary that normally holds purple gallinule, hamerkop, Von der Decken's hornbill and curlew. There is also a small hidden enclosure for Geoffroy's cat. The Hornbill Hill aviaries, Geoffroy's cat enclosure and part of the Medellin Monkeys exhibit have all been demolished to make way for the new sun bear enclosure. Future plans The zoo is currently devising plans to build a brand new tropical walk-through exhibit which will