The Karaivetti Bird Sanctuary located about 35 kms to the north of Thanjavur in Ariyalur Taluk of Perambalur District. The total area of the sanctuary is 454 ha. This sanctuary is significant in the sense that is has been attracting the largest congregation of water birds after Pt. Calimere Sanctuary in Tamilnadu. The peak congregation takes place in the month of November when over 2.5 lacs birds arrive in this sanctuary.
About 50 species of resident and migratory water birds visit this seasonal lake. Important visitors include the highflying Barheaded Goose, Rosy and Grey Pelican, Whitenecked stork, Spoonbill, Ibis, Shoveller, etc. Another important aspect of this sanctuary is the presence of water till the month of May as other water bodies dry up by the month of March, this sanctuary offers home to the water birds till May end.
The ideal time to visit the sanctuary is in November and February. The sanctuary is open visitors throughout the year.
Accommodation is available in Tamilnadu Guest House and private hotels in Thanjavur.
Nearest Railway Station : Thanjavur (35km) and Nearest Airport : Trichy (95km).