BRISTOL — On a warm breezy May afternoon, Cass Witkowski, lifted an 8-day-old homing pigeon from its nest in Shamrock Loft — the name he has given his backyard coop behind his Bristol home — and ...

Scientists have long been baffled by pigeons’ ability to find their way back home from hundreds of miles away. And despite decades of study and research that have shown what the birds do, they still ...