Sandesh Kadur / Wide angle shot of a Brown fish owl (Bubo zeylonensis) perched in a tree looking around, Ranthambore National Park, Rajasthan, India. 2016.

Luke Massey / Pel's fishing owl (Scotopelia peli) in South Luangwa, Zambia.

Mary McDonald / Pel's fish owl (Scotopelia peli) perched, Okavango Delta, Botswana.

David Pattyn / Brown fish owl (Ketupa zeylonensis) at rest, Ranthambore National Park, Rajasthan, India

David Pattyn / Brown fish owl (Ketupa zeylonensis) at rest, Ranthambore National Park, Rajasthan, India

Tony Heald / Pel's Fishing owl (Scotopelia peli) lit by vehicle headlights at night, South Luangwa National Park, Zambia

Steve O. Taylor (GHF) / Buffy fish owl (Bubo ketupu),which raids fishing catch, Gunung Palung National Park, West Kalimantan, Indonesian Borneo. July 2010.

Andy Trowbridge / Brown Fish Owl (Ketupa zeylonensis) perched in tree. Bandhavgarh National Park, India. March.

Loic Poidevin / Brown fish owl (Ketoupa zeylonensis) perched, Ranthambore National Park, India.

Will Burrard-Lucas / Pel's fishing owl (Scotopelia peli) perched at night, South Luangwa National Park, Zambia. May.

Pete Oxford / Pel's fishing owl (Scotopelia peli) perched at night, Okavango Delta, Botswana

Nature Production / Blakiston's Fish Owl {Bubo / Ketupa blakistoni} catching Big-scaled redfin {Tribolodon hakonensis} with its claws underwater, Hokkaido, Japan