The Council said flowering and fruiting of forage trees are the main reason behind the bats setting up camp. 

They are known to travel up to 100km each night in search of food. 

Council's natural resource officer Mitchell Jarvis said flowering of bloodwood and various eucalypt trees are a favoured food source and might explain the current expansion of flying foxes at Tuross.

"We don't know how long the flying foxes will remain at the camps across the shire, however their natural pattern is to follow food sources," he said.

"These generally reduce over winter in the Eurobodalla, and we see the flying foxes then head elsewhere.

The loud noises of the bats are thought to be due to the breeding season.

"In some camps even during the night they may be noisy as the young are left behind when the parents head out for food," Mr Jarvis said.

The Council's has a monitoring program of flying fox camps in place. Mr Jarvis said there have also been significant fluctuations of flying fox numbers in camps in the Bega Valley.

Currently there are five main camps in the Eurobodalla; at Batemans Bay Water Gardens, Catalina, Moruya Heads, Tuross Head and Narooma

"We'll continue to monitor the five active camps here in the Eurobodalla...We also suspect there are more camps that we are unaware of," he said.

"The community can assist by notifying us of any new daytime camps."

For more information, or to report new daytime camps, visit www.esc.nsw.gov.au/flyingfoxes or phone Council's natural resource officer Mitchell Jarvis on 4474 1263.