Sao Tome and Principe Islands and the Park are not only a sanctury for plants, but also for a lot of bird species. Specialists have sighted over 143 species in 40 families on the islands. The number of endemic birds in Sao Tome and Principe equals that of the much more extensive Galapagos Islands and exceeds the Seychelles; they are furthermore much easier to find than those in Hawaii. These factors make them possibly the easiest and most concentrated group of island endemics anywhere in the world!