పశ్చిమ గోదావరి జిల్లాలో అతిపెద్ద సరస్సు ఏది?
Atapaka Bird Sanctuary, also known as Kolleru Wildlife Sanctuary (see also Kolleru Bird Sanctuary), is a largest freshwater lake located in West Godavari district of Andhra Pradesh. The sanctuary falls under Kaikalur Forest Range. It is one of the Ramsar convention wetland sites, spread over an area of .
Atapaka Bird Sanctuary