A bald eagle can be seen sitting in a tree overlooking the Brandywine Creek in Popcopson Tuesday. A bald eagle was later seen feeding on a dead creature on Baltimore Pike across from Longwood Gardens Tuesday. There are an estimated 250 nesting pairs of bald eagles in Pennsylvania. Just 30 years ago, there were only three nests in the entire state. During the nesting season, bald eagles are sensitive to disruptions such as loud noises and sudden movements. The Pennsylvania Game Commission encourages eagle watchers to stay at least 1,000 feet from bald eagle nests to reduce stress on the nesting eagles. Bald eagles, apex predators, remain at the very top of the food chain. The vision of a bald eagle is five times that of a human.