The
largest fresh water lake in Asia, Kolleru lake is a virtual paradise for
nature lovers. Rich in flora and fauna, it attracts migratory birds from
Australia, Siberia, Egypt and Philippines between the months of October
and March. During this season, the lake is visited by an estimated 2,00,000
birds, which include Open Bill Storks, Painted Storks, Glossy Ibises, White
Ibises, Teals, Pintails, Shovellers, Red-Crested Pochards, Blackwinged Stilts,
Avocets, Common Redshanks, Wigeons, Gadwalls and Cormorants, among Others.
It is known the world over for the famous Kolleru Bird Sanctuary. This 673
sq.Kms wet land marsh habitat supports a large veriety of Water birds which
include Garganys,ducks,Open bill storks, Herons, Flamingos & grey pelicans.
India
Tourism 
The
sanctuary has the following watch towers for sighting the birds. 
