Small Vernal pond in the White Water Reserve that had many species of frogs singing.  BUT, Bobbie and I had never before heard this particular set of frog songs.  The high pitched Spring Peepers were singing as usually in the spring, and so were some common Chorus Frogs, but the main sound out of this pond was a loud bunch of frogs that sounded like a duck.  Yes, it sounded like a bunch of off-beat Mallard ducks.  We recorded the sound and have posted that video on our(Gary Erickson) facebook site. It turns out the frog that sounds like a duck is the Wood Frog.  Wood Frogs, do indeed live in the woods, and in the spring they seek out these small  ponds to mate and lay their eggs Their mating call is very unique.