Loons need clean, cear water so they can catch fish. A few simple things you can do to help loons:
Use only phosphate-free detergent and fertilizer
Keep pets from running wild along alke shores and harassing wildlife.
Make sure garbage is out of reach of loon predators like skunks and raccoons.
Enjoy loons from a distance, especially if they are nesting near your camp.
Boaters
Collisions are unfortunately one of the leading causes of death for loons in Maine.
Watch for loons and keep your distance, especially in shallow covers. Canoes and kayakers can get much too close, causing loons to leave their nests and eggs unprotected.
Slow down if you suspect you are close to diving loons.
Stay away from nesting loons.
Wakes from boats can flood a loon's shoreline nest, and can easily overwhelm small chicks. This is a particular problem when personal watercraft circle in one area for a long periods of time. "No wake" zones are 200 ft from shore in Maine; 150 in NH.
Anglers
Avoid fishing for prolonged periods in secluded coves where loons may be nesting.
Use only lead-free fishing sinkers and jigs.
Properly dispose of old lead tackle.
Retrieve broken fishing line; dispose of spent line properly; pick up discarded line in the water or along the shore.