Gabriel Rojo / Great black hawk (Buteogallus urubitinga) perched on branch. Pantanal, Mato Grosso, Brazil.

Nigel Cattlin / Death's head hawk-moth (Acherontia atropos) late instar caterpillar. England, UK.

Nigel Cattlin / Lime hawkmoth (Mimas tiliae) moth on Lime (Tilia sp) leaf. Berkshire, England, UK.

Markus Varesvuo / Hawk owl (Surnia ulula) and Black woodpecker (Dryocopus martius) perched in tree. Helsinki, Finland. December. Small repro only.

Franco Banfi / Great black hawk (Buteogallus urubitinga) juvenile, Pantanal, Mato Grosso, Brazil

Franco Banfi / Great black hawk (Buteogallus urubitinga). Pantanal, Mato Grosso, Brazil

Thomas Marent / Great Black Hawk (Buteogallus urubitinga), Pantanal, Mato Grosso, Brazil

Thomas Marent / Great Black Hawk (Buteogallus urubitinga), Pantanal, Mato Grosso, Brazil

Terry Whittaker / Humming-bird hawk-moth (Macroglossum stellatarum) feeding on Common knapweed (Centaurea nigra). Chalk cliffs, Kent. July

Terry Whittaker / Humming-bird hawk-moth (Macroglossum stellatarum) feeding on Common knapweed (Centaurea nigra). Chalk cliffs, Kent. July

Tony Heald / Great black hawk (Buteogallus urubitinga) immature perched in tree with prey, Argentine black and white tegu (Tupinambis merianae) Pantanal, Brazil

Wim van den Heever / Great black hawk (Buteogallus urubitinga) trying pick up a small piece of debris from a river, Pantanal, Brazil.

Alex Hyde / Privet Hawkmoth (Sphinx ligustri) feeding on honeysuckle flowers at night. Devon, UK. June.

Ben Cranke / Great Black Hawk (Buteogallus urubitinga) on a river bank, Mato Grosso, Pantanal, Brazil. July.

Luiz Claudio Marigo / Black Hawk (Buteogallus urubitinga) holding a fish in its claws with wings spread, on the shore of Pixaim River at The Pantanal of Mato Grosso, Mato Grosso State, Western Brazil.

David Pattyn / Great black hawk (Buteogallus urubitinga) with a freshly caught fish in talons, Pantanal, Mato Grosso, Brazil, August

Pete Oxford / Great Black Hawk (Buteogallus urubitinga), Yasuni National Park, Amazon, Ecuador

Luiz Claudio Marigo / Great Black Hawk (Buteogallus urubitinga) perched in a tree. Mato Grosso State, Brazil, October.

Pete Oxford / Great black hawk (Buteogallus urubitinga) fishing, Pantanal, Mato Grosso, Brazil

Mary McDonald / Great Black Hawk (Buteogallus urubitinga) perched in tree, Pantanal, Brazil.

Mary McDonald / Great Black Hawk (Buteogallus urubitinga) hunting fish, along river, Pantanal, Brazil

Murray Cooper / Great Black Hawk (Buteogallus urubitinga) juvenile, Peru

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga), Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) hunting, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) hunting, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) hunting, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) hunting, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) fishing, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) flying, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga) hunting, Pantanal, Brazil

Suzi Eszterhas / Great Black Hawk (Buteogallus urubitinga), Pantanal, Brazil

Juan Carlos Munoz / Great black hawk (Buteogallus urubitinga) pair perched, Pantanal NP, Mato Grosso, Brazil

Glenn Bartley/ BIA / Great Black Hawk (Buteogallus urubitinga), Pantanal, Brazil

Glenn Bartley/ BIA / Great Black Hawk (Buteogallus urubitinga), Manu National Park, Peru

Peter Waechtershaeuser/ BIA / Great Black Hawk (Buteogallus urubitinga), Pantanal, Brazil

Peter Waechtershaeuser/ BIA / Great Black Hawk (Buteogallus urubitinga) flying with lizard prey, Pantanal, Brazil

Robin Chittenden / Great black hawk (Buteogallus urubitinga) perched, Trinidad and Tobago.

Sylvain Cordier / Great black hawk (Buteogallus urubitinga), catching a fish, Pantanal, Mato Grosso, Brazil.