Sudbury

Steve Forman photographed a Baltimore oriole and painted turtles at Grist Mill Pond in Sudbury.

Dan Trippe photographed an eastern towhee, a mallard, and a palm warbler at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a snapping turtle at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a house sparrow and a pair of ring-necked ducks at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a brown-headed cowbird and a northern flicker at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a pair of ospreys at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a great blue heron and a hybrid mallard x American black duck at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a downy woodpecker at Assabet River National Wildlife Refuge in Sudbury.

Dan Trippe photographed a song sparrow and ring-necked ducks at Assabet River National Wildlife Refuge in Sudbury.

Phil Sharpe photographed a pair of ospreys in Sudbury.