Bird nest July to September), it is not in others, and the swiftlets are declining in areas where the harvest reaches unsustainable levels. Some species of birds are also considered nuisances when they nest in the proximity of human habitations. Feral pigeons are often unwelcome and sometimes also considered as a health risk. The Beijing National Stadium, principal venue of the 2008 Summer Olympics, has been nicknamed "The Bird Nest" because of its architectural design, which its designers likened to a bird's woven nest. In the Victorian era, naturalists often collected bird's eggs and their nests. The study of bird nests is
Nairobi City Stadium Nairobi City Stadium Nairobi City Stadium is a multi-purpose stadium in Nairobi, Kenya. It is located east of the city centre. The stadium is owned by the Nairobi City Council. The stadium was originally known as "African Stadium", then renamed to "Donholm Road Stadium". It was renamed to "Jogoo Road Stadium" after Kenya gained independence in 1963 and finally to "Nairobi City Stadium". It was the principal stadium in Nairobi until the 1980s when Nyayo National Stadium and Moi International Sports Centre were built. It is used mostly for football matches and is the home stadium of the traditional Gor