Udayamarthandapuram Bird Sanctuary

Udayamarthandapuram Bird Sanctuary is a .45 km2 (0.2 sq mi) protected area in Tiruvarur District, Tamil Nadu, India at 10.44972°N, 79.46611°W.

In 1999, this sanctuary was declared as a protected area. It has been designated as a protected Ramsar site since 2022.

Fauna
A notable aspect of the sanctuary is the large number of purple moorhen and openbill storks during February and March.