Hans Christoph Kappel / Northern bat roosting, Germany (Eptesicus nilssoni)

Roland Seitre / Australian False Vampire Bat / Ghost Bat (Macroderma gigas) roosting. Captive. Desert Park, Alice Springs, New Territories.

Tony Phelps / Geoffroy's horseshoe bat (Rhinolophus clivosus) roosting in shipwrecked ship. Noup, Namaqualand, Northern Cape, South Africa

Robert Thompson / Common long eared bat (Plecotus auritus) roosting on tree trunk, Clare Glen, County Armagh, Northern Ireland, UK, November

Dietmar Nill / Northern bat (Eptesicus nilssoni) in flight at night, Germany

Michael Durham / Northern Yellow Bat (Lasiurus intermedius) roosting in palm frond, Texas

Michael Durham / Northern Yellow Bat (Lasiurus intermedius) flying, Texas

Michael Durham / Northern Yellow Bat (Lasiurus intermedius) flying, Texas

Michael Durham / Hoary Bat (Lasiurus cinereus) male portrait, northern Oregon

Michael Durham / Hoary Bat (Lasiurus cinereus) male portrait, northern Oregon

Michael Durham / Hoary Bat (Lasiurus cinereus) male portrait, northern Oregon

Michael Durham / Hoary Bat (Lasiurus cinereus) day roosting inside a tree snag, northern Oregon