Joan Chasan photographed the following at Great Meadows National Wildlife refuge in Concord: American bullfrog, common moorhen, great blue heron, northern water snake, osprey, Virginia rail, Virginia rail chick, yellow-headed blackbird.
Read MoreJoan Chasan photographed this thrush, probably a wood thrush, in its nest at Great Meadows National Wildlife Refuge in Concord.
Read MoreJoan Chasan photographed the following at Great Meadows National Wildlife Refuge in Concord: common moorhen, great blue heron, muskrat, northern water snake, and tree swallow.
Read MoreAnne Dykiel photographed this northern water snake at Great Meadows National Wildlife Refuge.
Read MoreJames Doyle photographed this snapping turtle at Great Meadows National Wildlife Refuge in Concord.
Read MoreJames Doyle photographed this great blue heron at Great Meadows National Wildlife Refuge in Concord.
Read MoreAnne Dykiel photographed this Great Blue Heron at the Great Meadows National Wildlife Refuge in Concord (click on image for a larger view).
Read MoreAnne Dykiel photographed these Canada Geese at the Great Meadows National Wildlife Refuge in Concord (click on image for a larger view).
Craig Smith photographed this immature Black-crowned Night Heron at the Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).
Craig Smith photographed these Double-crested Cormorants at the Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).
Craig Smith photographed this Great Blue Heron being chased away by a Double-crested Cormorant at the Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).
Craig Smith photographed this Great Blue Heron at the Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).
Craig Smith photographed this Northern Harrier at the Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).
Craig Smith photographed these Red-winged Blackbirds at Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).
Read MoreCraig Smith photographed this American Coot at the Great Meadows National Wildlife Refuge in Concord (click on an image for a larger view).