March is the time when thousands of snow geese stop by Stevens, PA on their migration to Canada. Tundra swans, herons, bald eagles and visiting bird watchers can also be spotted at the Middle Creek Wildlife Management Area. The snow geese can fly up to 50 miles per hour and can live for more than 25 years.
Here is a Reading Eagle newspaper article for more info:
At Peak Migration, This Hiker Prefers To Stand Still.