Semipalmated Plover (Charadrius semipalmatus) August 3, 2020 1733 × 1155 Semipalmated Plover (Charadrius semipalmatus) Semipalmated Plover (Charadrius semipalmatus), September 2017, Napeague. Migrant. September, 2017. Napeague, Long Island. Shores. Migrant.