Whistle pigs are what we call the rock chucks (Hoary Marmonts) that live on the bluff. If you visit this cache in the summer you will see them hustle back and forth across the clay bluff. They will chirp at you to alert the rest of the clan. They are harmless, please do not pester them.
This is a puzzle box my little girls and I built. It will open easily if you get the 3 magnets on the right spots.
To open you just need to listen closely. The box is not meant to be forced, the locks are light duty. It will open smooth and easy if you have the magnets in the right place, DO NOT FORCE IT!