Koonthankulam bird sanctuary is situated 33-km south of Tirunelveli in Nanguneri taluk. Koonthankulam is a small and natural scenic village, which is covered with natural forests and ponds. During the season January to April every year more than 10 thousand birds from various countries like Pakistan, Myanmar, Sri Lanka, USA, Australia migrate here and when the season is over the birds return. Every day more than 5,000 people come here and enjoy.

Ariyakulam - Melakulam, 13-km east of Tirunelveli has another bird sanctuary. It may soon be catapulted into the list of popular water bird sanctuaries in the country. This village is sparsely populated. Migratory birds start coming by December end and fly away to their northern homes by June or July after they lay eggs, hatch them and the young ones grow old enough to fly with the older ones. About 35 species of birds visit this calm but congenial village for breeding.

The birds called Painted strokes are coming from North India and East European Countries to this place. Similarly the flamingoes which flew in mainly from the Rann of Kutch have hatched and reared their young ones in the village.