As a visitor you are constantly "under observation" by the many animal inhabitants of the Gesäuse National Park. If you are careful and attentive as a visitor, you have a good chance of seeing one or two of your "observers" yourself. A large number of butterflies, weaver's weeds and aquatic creatures can often be observed. Woodpeckers and other birds, especially golden eagles, which are permanent residents of the Gesäuse, can also be spotted frequently. Of the mammals, you are very likely to encounter chamois in the mountains, but for an encounter with a deer or marmot you need a bit more luck. The sighting of very rare animals, such as the well-camouflaged lynx, is purely a matter of luck and reserved for very few people. The national park administration offers guided tours of selected animal species that you don't normally get to see, such as the capercaillie.