Rajasthan's lakes, ponds, marshlands and grasslands are a haven for bird lovers.   One can find around 550 species of birds and most of these are residents. The   best colony of birds in the world is Keoladeo National Park situated In   Bharatpur.
It has more than 400 species of birds and more than 130 of   them breed inside the park. Being a unique bird place, the UNESCO has recognised   it as a world heritage site. It is truly a paradise of feathered life which   provides unlimited opportunities to bird watchers. Various other lakes and ponds   spread over the state offer the enthusiast an opportunity to watch the   activities of the birds. 
The major   wetlands other than Bharatpur are Kukas, Kalah, Bund, Buchora Chandii,   Chhaparwara and Ramgarh in Jaipur, Siliserh Jaisamand and Mansarover in Alwar,   Ana Sagar and Fatehsagar in Ajmer, Jaisamand, Pichhola and Badi Ka Talab in   Udaipur, Balsamand and Sardar Samand in Jodhpur, Bassi Dam in Chittaurgarh and   Meja Dam in Bhilwara. 
The best season for bird watching starts with the   onset of winter when marshlands and lakes are inhabited by migratory birds as   well as resident birds. In salt- water lakes, flamingos are also found, like in   Pachpadra near Barmer and Sambhar near Jaipur. Bird watching g is a hobby which   has minimum requirements. All you need is a binocular. 
 Rajasthan Tourism