The Aogu Wetlands was originally a sugar cane farm owned by the Taiwan Sugar Corporation located in Dongshi. However, due to land subsidence and seawater intrusion into the groundwater layer, the salt-affected farmland and fish ponds were abandoned, but they gradually returned to their natural state and attracted many birds to inhabit and overwinter, forming an extremely rich wetland ecosystem. In 2009, it was officially announced as the "Chiayi County Aogu Wild Animal Important Habitat", which is the largest newly formed land in Taiwan. Due to its warm and diverse ecological resources, over 200 species of birds inhabit here every year, attracting attention from bird enthusiasts at home and abroad. The "Aogu Wetland Forest Park", planned by the National Sun Yat-sen University and commissioned by the Forestry and Nature Conservation Bureau, won the first prize in the analysis and planning field of the American Landscape Architecture Association in 2011, for its comprehensive consideration of global migratory bird routes and other issues in the landscape planning. Currently, the protected birds in the area include Oriental Stork, Black Stork, Black-faced Spoonbill, Great Egret, Sparrowhawk, Chinese Sparrowhawk, Grey Egret, Osprey, Nordmann's Sandpiper, Common Redshank, Little Swift, and Red-rumped Bush-tyrant. During the winter, the number of wintering birds is large and diverse, making it a birdwatcher's paradise and environmental education site with deep ecological value.