There are dedicated scientists & researchers working here in the Adirondack Park to help protect threatened and endangered wildlife. For decades, The Adirondack Center for Loon Conservation in Saranac Lake has been documenting the impact mercury pollution is having on one of the Adirondack’s iconic symbols, the Common Loon. Our Jack LaDuke tagged along on one of their recent missions, in the pitch black of the night.

This story was produced in conjunction with Rare: Creatures of the Photo Ark.