Skip Navigation Links

About the Frog Listening Network

The best conservation is done at the local level. And because amphibian populations are declining worldwide, we need to monitor the populations of frogs and toads that we have right here in Florida. It is difficult to assemble a professional team to do this, which is why we rely on the help of volunteers.

The Frog Listening Network (FLN) is a volunteer-based monitoring program in which the public is trained to collect data about frog and toad populations in west-central Florida. Volunteers learn how to identify amphibians both audibly and visually. You do not have to be a scientist to be a part of the Frog Listening Network, and volunteers of all ages and backgrounds are welcome. We provide free trainings complete with educational materials such as full-color field identification cards to help you learn each amphibian species and their individual calls. We'll also teach you how to collect and record frog population data in a way that's fun and easy.

Amphibians are considered "sentinels" of environmental health because of their sensitive skin. By watching them and keeping track of their populations, we can begin to understand the health of the environment. Although the FLN is similar to other amphibian monitoring groups across the country, the FLN is the only group of its kind in west-central Florida. The Frog Listening Network has received several awards from the Governor's Council for a Sustainable Florida for Excellence in Environmental Education, Initiative, and Leadership in 1997, 1999, and 2001, respectively. The Southwest Florida Water Management District also recognized the Hillsborough River Watershed Alliance for Outstanding Leadership in Water Resource Education for its work through the Frog Listening Network in 2004.

Additional Resources

  • Amphibian website - The Institute of Food and Agricultural Science (IFAS) has a frog and snakes web page.

Frog Image Slideshow

Frogs Being Monitored

Select a frog to view species details, hear audio samples and view photographs.

Thumbnail Image of Frog
Barking Treefrog Hyla gratiosa
Thumbnail Image of Frog
Bronze Frog Rana clamitans clamitans
Thumbnail Image of Frog
Bullfrog Rana catesbeiana
Thumbnail Image of Frog
Cuban Treefrog (invasive) Osteopilus septentrionalis
Thumbnail Image of Frog
Eastern Narrow-mouthed Toad Gastrophryne carolinensis carolinensis
Thumbnail Image of Frog
Eastern Spadefoot Toad Scaphiopus holbrooki
Thumbnail Image of Frog
Giant Toad (invasive) Bufo marinus
Thumbnail Image of Frog
Gopher Frog Rana capito aesopus
Thumbnail Image of Frog
Green Treefrog Hyla cinerea
Thumbnail Image of Frog
Greenhouse Frog (invasive) Eleutherodactylus planirostris planirostris
Thumbnail Image of Frog
Little Grass Frog Pseudacris ocularis
Thumbnail Image of Frog
Oak Toad Bufo quercicus
Thumbnail Image of Frog
Pig Frog Rana grylio
Thumbnail Image of Frog
Pinewoods Treefrog Hyla femoralis
Thumbnail Image of Frog
River Frog Rana heckscheri
Thumbnail Image of Frog
Southern Chorus Frog Pseudacris nigrita verrucosa
Thumbnail Image of Frog
Southern Cricket Frog Acris gryllus dorsalis
Thumbnail Image of Frog
Southern Leopard Frog Rana sphenocephala
Thumbnail Image of Frog
Southern Toad Bufo terrestris
Thumbnail Image of Frog
Spring Peeper Pseudacris crucifer bartramania
Thumbnail Image of Frog
Squirrel Treefrog Hyla squirella