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Study: DC wildlife rescue group documents crystal-clear problem for migratory birds

Credit: Getty Images/iStockphoto/PaulReevesPhotography

Study: DC wildlife rescue group documents crystal-clear problem for migratory birds

Arrivals and departures make for huge bird migration over Maryland

Arrivals and departures make for huge bird migration over Maryland

More bird migration

Study: DC wildlife rescue group documents crystal-clear problem for migratory birds

Study: DC wildlife rescue group documents crystal-clear problem for migratory birds

Arrivals and departures make for huge bird migration over Maryland

Arrivals and departures make for huge bird migration over Maryland

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