National Flying-fox Monitoring Program

The National Flying-fox Monitoring Program began in 2013 and is a collaborative project between federal and state governments and CSIRO.

The aim of the national flying-fox monitoring program (NFFMP) is to establish a reliable benchmark on the size of flying-fox populations in 2013 and monitor population trends in subsequent years. Counts are carried out using a robust CSIRO monitoring methodology. It involves quarterly counts at all known daytime roost sites of grey-headed and spectacled flying-foxes across both species' national ranges.

The first full NFFMP census of grey-headed flying-foxes took place on 14-16 February 2013 and was the most comprehensive survey ever undertaken for this species. The CSIRO has released results from the quarterly counts and these can be found on the Australian Government Monitoring Flying-Fox Populations website. The results are intended as indicative advice only.

The information collected will improve our understanding of the distribution and population trends of grey-headed flying-foxes, which will help to inform our conservation and management of this species. The results of the program will also help inform responses to public concerns about the impact of flying-foxes on industry, agriculture and public health, including Hendra outbreaks. More information about the NFFMP is available at the Australian Government Monitoring Flying-Fox Populations website.

An interactive flying-fox web viewer has been developed to present the camp census data collected by the NFFMP. The viewer allows users to explore flying-fox camps and the numbers of each species counted over time. This information spans the data gathered from November 2012.

If you are aware of flying-fox camps that contain either grey-headed or spectacled flying-foxes that are not shown on this interactive web tool, notify the Department of the Environment by emailing details of the camp to