Probably African Sheath-tailed Bats (Coleura afra, german: Afrik. Schiebeschwanz-Fledermaus, french: Emballonure d’Afrique) in a cave in the Shai Hill Game Reserve. (425k)
Here are the pictures of African Sheath-tailed Bat (Coleura afra) with links to the pages on which they appear, links to the full sized picture, and the description of the picture with links to the entry in iNaturalist (inaturalist.org)
All pictures are © Dr. Günther Eichhorn, unless otherwise noted.
Ghana Nature
Dr. Günther Eichhorn Travel Website
Soaring website