The Semipalmated Sandpiper is a small bird about 5 to 6 in (10 to 15 cm) or about the size of Piping Plovers. I found one among a band of Semipalmated Plovers near Barnegat Lighthouse two weeks ago.
Yesterday there were quite a few of them on the South Jersey shoreline.
Semipalmated Sandpiper. Note the partially webbed feet.
Semipalmated Sandpipers were among the subject of some research by a government agency in New Jersey. While they and other birds were feasting on Horseshoe Crab eggs, researchers captured some with nets. Then they were banded, measured, and blood samples were taken from them, among other indignities.