Clapper

Clap"per, n. [F. clapier.] A rabbit burrow. [Obs.]

Clap"per (?), n. 1. A person who claps.

2. That which strikes or claps, as the tongue of a bell, or the piece of wood that strikes a mill hopper, etc. See Illust. of Bell.

Clapper rail (Zoöl.), an Americam species of rail (Rallus scepitans).