Environmentalists counted 18 bats at Železná studnička. The current winter is also reflected in the composition of bat species, said Michal Noga from the NGO Saola – nature protection.
“In the Small Carpathians, there are drifts and caves where 200 or 300 bats are in one place,” he said, as quoted by the TASR newswire. “Overall, there are sometimes more than 1,000 bats in the Small Carpathians in winter but there are no results for this year yet.”

Warm enough to sleep in trees
Military bunkers at Železná studnička are where they spend the winter in the dark and quiet. Environmentalists marked the species as the lesser horseshoe bat and the brown long-eared bat.