Karaivetti Bird Sanctuary situated in Ariyalur District (Vettakudi) located just 35km from north of thanjavur and 65km from Tirchy. Water birds are mostly attracted by the karaivetti sanctuary after the Pt. Calimere Sanctuary in Tamilnadu.The total area cover by sanctuary comes close to 454 Hectare.By November of every calender year the Karaivetti Bird Sanctuary becomes center of attraction when 2.5 lakhs birds arrive in sanctuary Nearly 50 types of resident and migratory water birds visit the seasonal lake. Important participants include the highflying Barheaded Goose, Ibis, Whitenecked stork, Spoonbill, Shoveller, Rosy and Grey Pelican, 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.