Empty clam shell.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Someone was hungry...

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Patterns.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Do you know what this is?

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Dad showing off.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Mom, Dad and youngster.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Youngster showing off.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Fancy footwork.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Piping Plovers (Charadrius melodus).

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Artful driftwood.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Colorful.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Piping Plovers (Charadrius melodus).

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Semipalmated Plovers (Charadrius semipalmatus).

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Piping Plovers (Charadrius melodus).

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Walking over the dunes and out to the sea.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Osprey watching over a fishermans' dock.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

View across the marsh.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Over the dunes again.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Fall colors?

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Sand dunes... open sea...

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

"Dune"scape.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

New barrier grasses growing.

Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Can you see me?

Common Green Darner, male (Anax junius). Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.

Common Green Darner, male (Anax junius)

Common Green Darner, male (Anax junius). Walking the beach at Parker River National Wildlife Refuge, Plum Island - Newburyport, MA.