1953Sudbury Valley Trustees2013Celebrating 60 Years of Conservation, Collaboration and Community

Joan Chasan photographed the following at Great Meadows National Wildlife Refuge in in Concord: Canada geese, eastern tiger swallowtail, great blue heron, a marsh wren nest, northern water snakes, osprey, sora, a warbling vireo in its nest, wood ducks, and a yellow warbler in its nest.

Joan Chasan photographed a common yellowthroat, great blue heron and red-winged blackbird at Great Meadows National Wildlife Refuge in Concord.

Raj Das photographed Canada geese and goslings, a common carp, warbling vireo, and wood ducks at Great Meadows National Wildlife Refuge in Concord.

Joan Chasan photographed red-winged blackbirds and a yellow warbler at Great Meadows National Wildlife Refuge in Concord.

Raj Das photographed a black-capped chickadee, blue-gray gnatcathcer and wood ducks on a foggy morning at Great Meadows National Wildlife Refuge in Concord.

Joan Chasan photographed a common carp, a great blue heron and a muskrat at Great Meadows National Wildlife Refuge in Concord.

Raj Das photographed a downy woodpecker, great blue heron, northern flicker, palm warbler, savannah sparrow and tree swallow at Great Meadows National Wildlife Refuge in Concord.

Raj Das photographed a common grackle, great blue heron, green-winged teal, red-winged blackbird, and wood duck at Great Meadows National Wildlife Refuge in Concord.

Brooke de Lench photographed this fledgling great horned owl at her Concord home.

Russ Place photographed an American kestrel, a pair of pileated woodpeckers and three Wilson's snipe near Nine Acre Corner in Concord.

Joan Chasan photographed a snapping turtle and a muskrat at Great Meadows National Wildlife Refuge in Concord.

Raj Das photographed a tree swallow at Great Meadows National Wildlife Refuge in Concord.

Joan Chasan photographed a red-tailed Hawk at Nine Acre Corner in Concord.

Raj Das photographed a red-winged blackbird, muskrat, ring-necked duck and wood duck at Great Meadows National Wildlife Refuge in Concord.

Sue Heard photographed red-winged blackbirds at Great Meadows National Wildlife Refuge in Concord.

David Clark explains his photos above: "These two ducks were photographed on the Sudbury River in Concord, on March 26. They were not very happy because a raccoon (in the next picture) had more or less gone to sleep on top of the nest hole they had been exploring. Not a good choice of a nest hole, I fear."

Sue Heard photographed Canada geese, muskrats, a red-bellied woodpecker, a red-tailed hawk and a ring-necked duck at Great Meadows National Wildlife Refuge in Concord.