At the release end of the Jordan Lake Dam in Chatham County, an osprey fishes for its dinner. The bird spins in the air, dives low over the water, and yanks a fish out with its talons. A heron, watching from the riverbank, squawks jealousy and lunges at the osprey. But with its long legs and giant beak, the heron is too slow and cumbersome compared to the osprey, which soars away with its scaly meal.