This is an adult female Piping Plover, also known as Charadrius melodus. She is foraging for invertebrates along the shoreline in Long Island, New York.
This photograph is to be published in a book by Sierra Club of Canada.
File state: Proof
Wildlife size: 25.2 Mpixels (72 MB uncompressed) - 6144x4096 pixels (20.5x13.7 in / 52x34.7 cm at 300 ppi)