“Wood frogs are seasonal breeders that breed from early March to May. They are the first frogs to begin calling, often before the ice is completely off the breeding ponds. While the calls of these male frogs are very abundant in season, once the breeding season is over they become silent. During the breeding season however, they create a chorus of duck-like quacking sounds, described by some as a "lot of chuckling".
Wood frogs inhabit a wide variety of habitats including tundra, thickets, wet meadows, bogs, coniferous and deciduous forests. Wood frogs are aquatic breeders and require fish-free seasonal or semi-permanent bodies of water to reproduce, but will migrate from their primary habitat to breed. These frogs seek out terrestrial locations with ample cover to hibernate which may or may not be near a breeding pond.”
http://animaldiversity.org/accounts/Lithobates_sylvaticus/
https://www.macaulaylibrary.org/
https://en.wikipedia.org/wiki/Wood_frog