Capital Indoor Stadium Capital Indoor Stadium The Capital Indoor Stadium () is an indoor arena in 56 Zhongguancun South Street, Beijing, China that was built in 1968. It hosted matches between national table tennis teams of China and the United States in 1971; these matches were part of the exchange program known as "ping pong diplomacy". It has a capacity of 17,345 and a floor space of 54,707 square meters expanded from the old 53,000. It was renovated in 2001 to become a venue for the 2001 Summer Universiade. The stadium hosted one of the first NBA games in China, hosted on October
The Life of Birds raven from raiding a nest by collectively raising an audible alarm. However, in an English wood, all species co-operate to warn each other surreptitiously of approaching danger. By contrast, a sunbittern is shown expanding its plumage to discourage a group of marauding hawks. The members of the finch family exemplify how colour aids recognition. Birds have excellent colour vision, and the feathers of many species react to ultraviolet light. Flocking birds, such as sparrows, also have a 'ranking system' that determines seniority. In Patagonia, Attenborough demonstrates the effectiveness of sound: he summons a Magellanic woodpecker by knocking on a tree.