This is a German language video about a barbastelle bat.
Dutch Vroege Vogels radio reported on 11 May 2007 about barbastelle bats. They used to be rare in the Netherlands. Until 1993, they hibernated in one spot: a ruin in Zeeuws-Vlaanderen region in Zeeland province.
After that ruin was demolished, the bats disappeared.
On 1 May this year, barbastelle bats were seen again in a woodland in Zeeuws-Vlaanderen.