Oriol Alamany / Goliath heron (Ardea goliath) near Mopani Dam at dusk, Kruger National Park, Transvaal, South Africa, September.

Brent Stephenson / Goliath Heron (Ardea goliath) standing in water looking for prey. St Lucia Wetlands, Natal, South Africa, January.

Pete Oxford / Two Goliath Herons (Ardea goliath) by water. Kruger National Park, South Africa, December.

Tui De Roy / Goliath Heron (Ardea goliath), Mpala Research Centre, Kenya

Pete Oxford / Goliath Heron (Ardea goliath) pair displaying along shore, Kruger National Park, South Africa

Pete Oxford / Goliath Heron (Ardea goliath) displaying along shore, Kruger National Park, South Africa

Richard Du Toit / Goliath heron (Ardea goliath) wading in deep water, Marievale bird sanctuary, Guateng, South Africa, November

Suzi Eszterhas / Goliath Heron (Ardea goliath), Masai Mara National Reserve, Kenya

Paul Hobson / Goliath Heron {Ardea goliath} standing in reeds, Kenya.

Paul Hobson / Goliath Heron {Ardea goliath} head and beeak profile, Kenya.

Paul Hobson / Goliath Heron {Ardea goliath} standing in reeds, Kenya.

Mike Wilkes / Goliath heron (Ardea goliath) Naivasha, Kenya