Assertion: pigeon's bird | /r/CapableOf | fly at speed
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Source sentences:
text: Though awkward on the ground, these birds—which ranged from Ontario, Quebec, and Nova Scotia down to Texas, Louisiana, Alabama, Georgia, and Florida, nested from the Great Lakes to New York, and wintered from Arkansas to North Carolina and further south—were graceful and highly maneuverable in the air, flying at speeds up to 60 mph.