Markus Varesvuo / Pharaoh eagle owl (Bubo ascalaphus) on sand, Morocco, March.

Alain Dragesco-Joffe / Pharaoh eagle-owl (Bubo ascalaphus) Sahara Desert

Alain Dragesco-Joffe / Pharaoh eagle-owl (Bubo ascalaphus) on ground. Sahara Desert.

Alain Dragesco-Joffe / Pharaoh eagle-owl (Bubo ascalaphus) taking off. Sahara Desert. Small repro only

Francois Savigny / Giant eagle owl (Bubo lacteus) on ground, Kalahari Gemsbok / Kgalagadi Transfrontier NP, South Africa.

Bruno D'Amicis / Pharaoh's eagle owl (Bubo bubo ascalaphus) sitting on Tamarisk tree (Tamarix) in Sahara desert. Grand Erg Oriental, Kebili Governorate. Tunisia.

Bruno D'Amicis / Savigny's / Sahara Eagle owl (Bubo ascalaphus) female and chick at nest site in cliff face, Moroccan Sahara, NW Africa

Hanne & Jens Eriksen / Pharaoh / Savigny's eagle owl {Bubo ascalaphus} male in tree, Sweihan, UAE

Hanne & Jens Eriksen / Pharaoh / Savigny's eagle owl {Bubo ascalaphus} male in tree, Sweihan, UAE

Hanne & Jens Eriksen / Pharaoh / Savigny's eagle owl {Bubo ascalaphus} large chick in tree, Sweihan, UAE

Hanne & Jens Eriksen / Pharaoh / Savigny's eagle owl {Bubo ascalaphus} male in sand dune, Sweihan, UAE

Rod Williams / Savigny's / Pharaoh eagle owl {Bubo ascalaphus} captive

Joel Sartore / Photo Ark / Desert eagle owl (Bubo ascalaphus desertorum) head portrait, Dubai Safari Park, United Arab Emirates. Captive.

Joel Sartore / Photo Ark / Pharaoh eagle-owl (Bubo ascalaphus) close up of head vocalising, International Centre for Birds of Prey. Captive.

Joel Sartore / Photo Ark / Pharaoh eagle-owl (Bubo ascalaphus) looking around before walking out of frame, Woodland Park Zoo, Seattle, Washington. Captive.