Peregrine Falcon, Acadia National Park, Maine

A Peregrine Falcon on Beech Cliff, Acadia National Park, Maine.
In early spring each year, park resource managers watch intently for signs of returning peregrines. If mating or nesting behavior is observed, certain trails are temporarily closed to avoid disturbance to the nesting area. These measures are helping this magnificent falcon make a triumphant comeback in Acadia National Park and contributing to the success story of the Endangered Species Act.