A preview of the next episode of Wild Isles shows a dramatic sequence of bats filmed in the North York Moors.
It is believed to be the first ever bat lek filmed using high-speed infra-red cameras and captures a group of males of different species coming together at night and flying in circles in an attempt to impress females.
The episode airs on Sunday, April 2, 2023 at 7pm on BBC One and BBC iPlayer.
ALL CREDIT: Wild Isles/Silverback Films/BBC