ring-necked plover

from The Collaborative International Dictionary of English v.0.48

Ringneck \Ring"neck`\, n.
   1. (Zool.) Any one of several species of small plovers of the
      genus {Aegialitis}, having a ring around the neck. The
      ring is black in summer, but becomes brown or gray in
      winter. The semipalmated plover ({Aegialitis semipalmata})
      and the piping plover ({Aegialitis meloda}) are common
      North American species. Called also {ring plover}, and
      {ring-necked plover}.
      [1913 Webster]

   2. (Zool.) The ring-necked duck.
      [1913 Webster]