Wildlife officials are looking for volunteers to spend a night out in Minnesota's wilderness listening out for frogs and toads.
As part of the nationwide North American Amphibian Monitoring Program, Minnesota's Department of Natural Resources' Nongame Wildlife Program needs volunteers to monitor routes to provide information on where species are located, and how their populations are changing.
According to a DNR release, volunteering will involve conducting night-time "listening surveys" on three nights between April and July to help the DNR determine if there's been any variations among the state's 14 frog and toad species.
You can find a map of the available listening routes here.
"Without the dedication of generous volunteers, this project would not be possible," volunteer coordinator Heidi Cyr said. "Many frog and toad species are indicators of habitat quality and provide valuable information on the condition of Minnesota's wetlands."
Volunteers will be given a kit including a CD which contains calls of Minnesota's frog and toad species, a poster showing images of the state's frogs and toads, and maps and directions of the route they have chosen.
A vehicle will be needed to travel between different stops on the route.
Anyone who wants to help out should identify a route and then email email@example.com.
Species located in Minnesota include the bullfrog, the American toad, the Green Frog and the Western Chorus Frog. In fact, you can listen to what their calls are like right here on the DNR website.