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
Van Nest, Bronx Van Nest Land & Improvement Company. Before the city graded the streets in 1895, the flat terrain and accumulation of rainwater in low-lying areas resulted in this area being nicknamed "Mud West". The multi-legged intersection of Van Nest Avenue, Unionport Road, and Victor Street is still known as the "Five Corners" by many old timers and locals. Van Nest has a population under 15,000. The neighborhood has a concentration of Puerto Ricans and also contains a significant African American population. A small longstanding Italian and Albanian population exist east of White Plains Road near Morris Park. The majority of residents