"World Migratory Bird Day", the purpose is to raise public awareness of protection of migratory birds, to promote global bird protection. May 11, 2013 "World Migratory Bird Day", "Let birds fly" charity fund joint cross-border artists Lin Weijun, Galaxy SOHO Square in Beijing launched the "home" performance art devices, called rational process of urbanization, the habitat of migratory birds reserved survival of the land. We hope to use a distinctive mode of transmission, called for the protection of migratory birds and their habitat, the establishment of migratory bird protection networks.