Tiny Point Pelee National Park has surprising diversity for its size. But, it is best known for its spring bird migration, when nearly 350 species of birds and thousands of birds converge on the Park. The recreational use of Point Pelee has done almost irreparable damage to its tiny, delicate ecosystem. Today, efforts are focussed on restoring the natural environment. Park staff are monitoring the Eastern fox snake, a key indicator of ecosystem health. The flying squirrel, a crucial, native species extirpated in the 1960's has been successfully re-introduced.