Four previously undiscovered species of bats were found in the Bijambare protected landscape, in central Bosnia, near Sarajevo, known for its cave system. The region now counts 21 species of bats, making it the richest bat area in the region. The second richest bat area is the Skocjan Caves in Slovenia with 18 species of bats.

The annual monitoring (Winter 2017 – Autumn 2018) conducted by the Centre for Karst and Speleology from Sarajevo discovered the Common pipistrelle (Pipistrellus pipistrellus), the Savi's pipistrelle (Pipistrellus savii), the Common noctule (Nyctalus noctula), the Mediterranean horseshoe bat (Rhinolophus euryale) and a group of Pipistrellus kuhlii/nathusii.

Bijambare region is also home to 10 bat species listed on Annexe II of the Habitats Directive.

Bijambare protected landscape is also home to the rare and globally protected Bechstein's bat (Myotis bechsteinii) whose presence is evidence of a very old, high-quality forest which is of extreme importance for this specie.

Bats belong to the most endangered species of mammals in Europe, and for this reason, a great deal of attention is paid to them. Through the European agreement on the protection of European species of bats (EUROBATS), all European countries have teamed up to protect bats and their habitats.

Bosnia and Herzegovina has also joined this European family in 2018.