The majority of the area is covered by hemi-boreal forest (mostly dominated by Picea), and there are also bogs, marshes, several lakes with islands, meadows, and agricultural land. Land-uses are many and varied, including agriculture, forestry, and recreation.
An important breeding area for Porzana porzana. Breeding species of global conservation concern that do not meet IBA criteria: Crex crex. This is the main breeding site for Mergus merganser (10-18 pairs) in Lithuania and is also important for breeding Ciconia ciconia (more than 70 pairs) and Tetrao tetrix.
BirdLife International (2021) Important Bird Areas factsheet: Zemaitija National Park. Downloaded from http://www.birdlife.org on 28/01/2021.