A bird walks, while a South African fighter plane lands after its performance on the fourth day of Africa Aerospace & Defence (AAD) 2014 in Air Force Basement Waterkloof, Pretoria, South Africa, on Sept. 20, 2014. AAD 2014, the largest exhibition of its kind in Africa, scheduled from Sept. 17 to 21, was open to the public here Saturday. An air show was held on the fourth day of the exhibition, attracting thousands of spectators. A total of 347 exhibitors from 26 countries and regions are taking part in the biennial exhibition this year. (Xinhua/Zhai Jianlan)