Christophe Courteau / Giant eagle owl {Bubo lacteus} Okavango delta Botswan

Nick Garbutt / Verreaux's / Giant eagle-owl (Bubo lacteus) with full moon in the background, hunting along the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Ann & Steve Toon / Verreaux's / Giant eagle owl (Bubo lacteus) perched with eyes closed showing nictating membrane, Kgalagadi Transfrontier Park, South Africa, January

Ann & Steve Toon / Verreaux's / Giant eagle owl (Bubo lacteus) perched with eyes closing showing nictating membrane, Kgalagadi Transfrontier Park, South Africa, November

Tony Heald / Giant eagle owl {Bubo lacteus} juvenile perched, Kgalagadi Transfrontier Park, South Africa

Mike Wilkes / Gaint eagle owl (Bubo lacteus) on nest with nictating membrane covering eye, Baringo NP, Kenya

Andrew Parkinson / Giant eagle owl {Bubo lacteus} perched with nictating membranes covering eyes, Kgalagadi Transfrontier NP, South Africa

Suzi Eszterhas / Giant / Verreaux's Eagle Owl {Bubo lacteus} perched, Masai Mara Triangle, Kenya

Suzi Eszterhas / Giant / Verreaux's Eagle Owl {Bubo lacteus} perched, Masai Mara Triangle, Kenya

Richard Du Toit / Giant eagle owl {Bubo lacteus} perched, Kalahari Gemsbok National Park, South Africa

Anup Shah / Verreaux's / Eagle owl {Bubo lacteus} Serengeti NP, Tanzania

Tony Heald / Giant eagle owl {Bubo lacteus} showing pink eyelids, Laikipia, Kenya

Andrew Parkinson / Giant eagle owl {Bubo lacteus} perched on termite mound, Savuti Chobe NP, Botswana

Philippe Clement / Giant eagle owl eyes closed looking backwards {Bubo lacteus} South Africa Kalahari

Richard Du Toit / Giant eagle owl in Camelthorn tree, Kalahari Gemsbok National Park, S.Africa

Richard Du Toit / Giant eagleowl (Bubo lacteus) with Goshawk kill. Kalahari Gemsbok NP, South Africa

Andrew Parkinson / Giant eagle owl {Bubo lacteus} Kgalagadi TFP South Africa