Piping Plover with chicks at Higgins Beach in Scarborough, ME. (Photo by Megan Maher/courtesy of Maine Audubon)Maine beaches are seeing a record number of endangered piping plover breeding pairs this year, according to Maine Audubon’s latest count. Piping plovers are a small migratory shorebird, designated as endangered under the Maine Endangered Species Act, and the species is considered threatened under the federal Endangered Species Act. Th…