Meaning of pigeon timer

pi'geon tim"er

Pronunciation: [key]
  1. a device for timing the arrivals of pigeons being raced, consisting of a magazine for holding the identification bands of the contestants in the order in which they are inserted and a recording clock to register the times of insertion. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.