Pigeon racing
Overview
Pigeon racing is the sport of releasing specially trained racing pigeons, which then return to their homes over a carefully measured distance. The time it takes the animal to cover the specified distance is measured and the birds rate of travel is calculated and compared with all of the other pigeons in the race to determine which animal returned at the highest speed.

Pigeon racing requires a specific breed of pigeon bred for the sport, the "Racing Homer".
 
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