Pulicat Lake Bird Sanctuary is a sanctuary for birds, in area, located in the Tirupati district of Andhra Pradesh and a protected area of the Thiruvallur District of Tamil Nadu, India. Pulicat Lake is the second largest brackish-water eco-system in India after Chilka lake in Orissa. The sanctuary's international name is Pulicat Lake Wildlife Sanctuary (IBA Code: IN261, Criteria: A1, A4iii).
Central location is: . is managed by the Andhra Pradesh Forest Department and is managed by the Tamil Nadu Forest Department. is a National Park area. Rainfall ranges from 800 to 2000 mm. Temperature varies from . Altitude ranges from above mean sea level to above mean sea level.
The green kingdom is represented with about 132 plant species like Walsura piscida; Manilkara elengi, Excoecaria agallocaha, Spinifex littoreus, Calamus viminalis, and many more
The sanctuary is rich in invertebrate life including planktons, molluscs, insects, coelenterates and crustaceans. Jackal, Jungle cat, Black napped hare; are a few of the mammalian species inhabiting the Sanctuary.
The sanctuary has many greater flamingos. It attracts many migratory birds and also is a feeding and nesting ground for aquatic and terrestrial birds such as pelicans, storks, etc. The biodiversity of this lake attracts hundreds of thousands of visitors per year.
Pulicat Lake may disappear within 100 years by being filled up with silt. Efforts by government and private non-governmental organizations are working to halt lake destruction. The Art & Architecture Research, Development and Education (AARDE) Foundation does regular activities at Pazhaverkadu to create awareness on the vanishing lagoon.