In this winter-that-just-won’t-quit, the amphibians of The Preserve have been biding their time. But on March 15, in one of the many vernal pools dotting the 1,000 acre forest, Chuck Landrey reports he heard the calls of a few hardy Wood Frogs, Rana sylvatica . “Everyone understandably thinks Spring Peepers (Pseudacris crucifer) are the first to call, but Wood Frogs start calling even when there is still some ice in the pools.” And Wood Frogs are particular, only breeding in vernal pools; never in an open pond or lake. A group of calling Wood Frogs sounds a bit like ducks quacking. Play this 30-second audio clip: So keep your ears open, for the true first sound of Spring.