By day, Robert Threet is a systems manager at the University of  Southern Indiana in Evansville. But when he’s not knee-deep in network hardware, he races homing pigeons. Credit: Robert Threet Pigeon racing, which I’d always thought was the preserve of people from the north of England with flat caps and whippets (calm yourselves, commenters: my granddad was a man from the north of England with a flat cap – no whippets – and his friends were  all over this stuff; budgie shows, too) turns out to have a following in the USA as well

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Pigeon Pi