The Panamaram heronry is perhaps the most diverse heronry in the State owing to its large diversity of species.
As many as nine species have been found breeding here over a period of five decades. The breeding birds in the heronry include the Black-headed Ibis and Intermediate Egrets, but other species such as Night Heron, Little Egret, Pond Heron, Purple Heron, Large Egret, Little Cormorant, and Cattle Egret are also recorded here.
Close to 700 nests were recorded in the annual heronry survey conducted by the Hume Centre for Ecology and Wildlife Biology recently, C.K. Vishnudas, an ornithologist and director of the centre told The Hindu.