The large presence of frogs is mainly due to the agriculture typical of these areas which have always been known for their famous rice. The large cultivation of rice means that there is large presence of artificial water channels used to flood rice fields during growing season, which makes a perfect habitat for frogs. During the growth period when fields stay flooded, and even more during the draining of the fields farmers and others often gather to go frog hunting armed with nets. Some towns even organize collective hunting sessions and games.