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In page Bordesley Green:
"In the 1920s a Bordesley Green bus driver and pigeon fancier, William Penson,[1] noticed one of his birds perform a backflip while in flight, and through selective breeding produced the Roller and Tumbler breed of pigeon.[2] This breed is noted for its unique acrobatics while in flight and is used in ‘parlour rolling’ contests. Today there are hundreds of Birmingham Roller clubs around the world and fiercely fought competitions to pick the birds that perform the most dramatic tumbling.[3]
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