A complex of woodlands (mostly pine Pinus-dominated), lakes, rivers and meadows. The majority of the area is under forest management and is used for recreation.
This is one of the most important sites in Lithuania for Coracias garrulus, and Caprimulgus europaeus; Tetrao tetrix and Alcedo atthis are also common. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (non-breeding) and Crex crex (breeding).
BirdLife International (2020) Important Bird Areas factsheet: Initial area of Aukstaitija NP. Downloaded from http://www.birdlife.org on 04/08/2020.