Neil Aldridge / Yellow-billed stork (Mycteria ibis) catching a young barbel or catfish in the shallows of the Chobe River, Chobe National Park, Botswana.

Juan Carlos Munoz / Wood Stork / American Wood Ibis (Mycteria americana) in flight. Everglades National Park, Florida, USA, February.

Rolf Nussbaumer / American wood ibis with beak open {Mycteria americana} Texas, USA

Rolf Nussbaumer / American wood ibis head portrait {Mycteria americana} Texas, USA

Rolf Nussbaumer / American wood ibis pair {Mycteria americana} Texas, USA

Richard Du Toit / Juvenile Yellow billed stork bathing {Mycteria ibis} Moremi WR, Botswana

Tony Heald / Yellow-billed stork (Mycteria ibis) preening, standing in water. Kruger National Park, South Africa.

Tony Heald / Yellow-billed stork (Mycteria ibis) Kruger National Park, South Africa September 2014

John Shaw / Yellow-billed stork (Mycteria ibis) watching a Nile crocodile (Crocodylus niloticus). Chobe RIver near Kasane, Botswana, September.

Bernard Castelein / Wood stork (Mycteria americana) feeding, Pampas del Yacuma Protected Area, Bolivia

Eric Baccega / Yellow-billed stork (Mycteria ibis) in Albert lake. Murchisson Falls National Park, Uganda, February.

Angelo Gandolfi / Wood stork (Mycteria americana) flying over termite mounds amongst scattered trees. Cerrado, Brazil. 2010.

Lynn M. Stone / Wood stork (Mycteria americana) in saltwater lagoon. Tierra Verde, Pinellas County, Florida, USA.

Eric Baccega / Yellow-billed stork (Mycteria ibis) standing on Cape buffalo (Syncerus caffer). Queen Elizabeth National Park, Uganda.

Eric Baccega / Yellow-billed stork (Mycteria ibis) sweeping the water for fish. Queen Elizabeth National Park, Uganda.

Jen Guyton / Nile crocodile (Crocodylus niloticus) at water's edge to feed on Great white pelican (Pelecanus onocrotalus) prey. With birds on the shore including pink-backed pelicans (Pelecanus rufescens), marabou...

Jen Guyton / Nile crocodile (Crocodylus niloticus) eating Great white pelican (Pelecanus onocrotalus). With birds on the shore including pink-backed pelicans (Pelecanus rufescens), marabou storks (Leptoptilos crum...

Jen Guyton / Nile crocodile (Crocodylus niloticus) underwater holding a Great white pelican (Pelecanus onocrotalus) prey. after a group of the birds dove into the river to hunt fish. Here, the crocodile slowly sw...

Jen Guyton / Yellow-billed stork (Mycteria ibis) fishing in the Msicadzi River, Gorongosa National Park, Mozambique, while a Nile crocodile (Crocodylus niloticus) swims past. During the dry season many water sour...

Jen Guyton / Nile crocodile (Crocodylus niloticus) emerging from the Msicadzi River, to swallow a mouthful of fish as a yellow-billed stork (Mycteria ibis) scans for fish nearby. Msicadzi River, Gorongosa Nation...

Jen Guyton / Yellow-billed stork (Mycteria ibis) hunting for fish near a Nile crocodile (Crocodylus niloticus) that has come up to swallow a mouthful of fish. Msicadzi River, Gorongosa National Park, Mozambique. D...

Jen Guyton / Birds squabbling over fish in the Msicadzi River. Pink-backed pelican (Pelecanus rufescens) biting at the head of another pelican with a pouch full of fish while a marabou stork (Leptoptilos crumenife...

Claudio Contreras / Wood stork (Mycteria americana) landing near Bahia Cacaluta, Bahias de Huatulco National Park, Oaxaca, southern Mexico, August

Ann & Steve Toon / Yellow-billed stork (Mycteria ibis) landing at nest with chicks, carrying nesting material, Chobe River, Botswana, June.

Jen Guyton / Yellow-billed stork (Mycteria ibis) swallowing a tiny fish that it has captured in the Msicadzi River, Gorongosa National Park, Mozambique.

Jen Guyton / Birds, marabou storks (Leptoptilos crumenifer), great egrets (Ardea alba), yellow-billed storks (Mycteria ibis), and grey herons (Ardea cinerea), pink-backed pelicans (Pelecanus rufescens), and hamerk...

Jen Guyton / Marabou stork (Leptoptilos crumenifer) steals a small fish from between the jaws of a Nile crocodile (Crocodylus niloticus) whilst Yellow-billed stork (Mycteria ibis) watches on. Gorongosa National Pa...

Jen Guyton / Nile crocodile (Crocodylus niloticus) emerging from the Msicadzi Rive to swallow a mouthful of fish, whilst Yellow-billed stork (Mycteria ibis) scans for fish in the foreground. Gorongosa National P...

Jen Guyton / Great egret (Ardea alba), yellow-billed storks (Mycteria ibis), a marabou stork (Leptoptilos crumenifer), and a little egret (Egretta garzetta) all share a small patch of hunting ground during dry sea...

Jen Guyton / Yellow-billed stork (Mycteria ibis) hunting for fish while a juvenile stands nearby. Msicadzi River, Gorongosa National Park, Mozambique.

Jen Guyton / Yellow-billed stork (Mycteria ibis) sweeps the water for fish in the Msicadzi River, Gorongosa National Park, Mozambique

Jen Guyton / Yellow-billed stork (Mycteria ibis) swallows a tiny fish that it has captured in the Msicadzi River, Gorongosa National Park, Mozambique.

Jen Guyton / Nile crocodile (Crocodylus niloticus) emerges from the Msicadzi River to swallow a mouthful of fish as a yellow-billed stork (Mycteria ibis) scans for fish nearby. Gorongosa National Park, Mozambique...

Jen Guyton / Yellow-billed stork (Mycteria ibis) standing in the Musicadzi River during the dry season, Gorongosa National Park, Mozambique.

Jen Guyton / Nile crocodile (Crocodylus niloticus) with White pelican (Pelecanus onocrotalus) caught in mouth whilst a Yellow-billed stork (Mycteria ibis) looks on. Msicadzi River, Gorongosa National Park, Mozambi...

Jen Guyton / Yellow-billed stork (Mycteria ibis) swallowing a fish that it has captured in the Msicadzi River, while a Hamerkop (Scopus umbretta) watched on, Gorongosa National Park, Mozambique.

Jen Guyton / Nile crocodile (Crocodylus niloticus) eating Great white pelican (Pelecanus onocrotalus). With birds on the shore including pink-backed pelicans (Pelecanus rufescens), marabou storks (Leptoptilos crum...

Denis-Huot / Yellow-billed stork (Mycteria ibis), fishing, Masai-Mara game reserve, Kenya,

Tony Heald / Yellow-billed stork (Mycteria ibis) flying with nesting material Chobe National Park, Botswana, June.

Tony Heald / Yellow-billed stork (Mycteria ibis) bringing in nesting material, Chobe National Park, Botswana, May.

Tony Heald / Yellow-billed stork (Mycteria ibis) bringing in nesting material, Chobe National Park, Botswana, May.

Sharon Heald / Yellow-billed stork (Mycteria ibis) nesting colony, Chobe River Chobe National Park, Botswana. May.

Ingo Arndt / Mixed bird species feeding in shallow water: Great Egret (Ardea alba), Snowy Egret (Egretta thula), White Ibis (Eudocimus albus), Great Blue Heron (Ardea herodias), Roseate Spoonbill (Platalea ajaja),...

Cyril Ruoso / Yellow billed storks (Mycteria ibis) displaying, La Ruvubu National Park, Burundi, Non-ex.

Ann & Steve Toon / Yellow-billed stork (Mycteria ibis) carrying nesting material, Chobe River, Botswana, June

Christophe Courteau / Yellow-billed storks (Mycteria ibis) two fishing in the Okavango Delta, Botswana.

Wim van den Heever / Yellow-billed stork (Mycteria ibis) scratching its head, Zimanga Private Game Reserve, South Africa.

Wim van den Heever / Yellow-billed stork (Mycteria ibis) portrait with storm clouds in the background and a flock of Open billed storks flying past (Anastomus lamelligerus) Zimanga Private Game Reserve, South Africa.

Ann & Steve Toon / Yellowbilled stork (Mycteria ibis) foraging, Zimanga private Game Reserve, KwaZulu-Natal, South Africa, May

Ann & Steve Toon / Yellowbilled stork (Mycteria ibis) reflected in water, Zimanga private Game Reserve, KwaZulu-Natal, South Africa, May

Constantinos Petrinos / Yellow-billed stork (Mycteria ibis) with Nile crocodile (Crocodylus niloticus) in the background, Lake Chamo, Nechisar National Park, Arba Minch, Ethiopia, Africa, March 2009.

Neil Aldridge / Yellow-billed stork (Mycteria ibis) hunting for fish, Chobe River, Chobe National Park, Botswana.

Neil Aldridge / Portrait of a Yellow-billed stork (Mycteria ibis) fishing in the shallows of the Chobe River, Chobe National Park, Botswana.

Neil Aldridge / Yellow-billed stork (Mycteria ibis) feeding in the shallows of the Shingwedzi River, Kruger National Park, South Africa.

Neil Aldridge / Portrait of a Yellow-billed stork (Mycteria ibis) on the banks of the Shingwedzi River, Kruger National Park, South Africa.

Neil Aldridge / Yellow-billed stork (Mycteria ibis) feeding in the shallows of the Shingwedzi River, Kruger National Park, South Africa.

Tony Heald / Yellow-billed stork (Mycteria ibis) in flight, Chobe National Park Botswana.

Tony Heald / Yellow-billed stork (Mycteria ibis) preening, Chobe National Park, Botswana.

Steven David Miller / Wood stork (Mycteria americana) bathing in wetland, Everglades National Park, Florida, USA. March.

Richard Du Toit / Yellowbilled stork (Mycteria ibis) in flight, close up of face and beak, Kruger National Park, South Africa.

Denis-Huot / Tantale ibis (Mycteria ibis) fishing, Masai Mara Game Reserve, Kenya, October.

Denis-Huot / Four Yellow-billed storks (Mycteria ibis) standing in water, Lake Nakuru, Nakuru National Park, Kenya.

Denis-Huot / Yellow-billed storks (Mycteria ibis) at edge of flooded Lake Nakuru after the deforestation of the Mau Escarpment, Nakuru National Park, Kenya. October 2012.

Will Burrard-Lucas / Flock of Yellow billed storks (Mycteria ibis) roosting in trees during a flood, South Luangwa National Park, Zambia. March.

Will Burrard-Lucas / Yellow-billed stork (Mycteria ibis) colony silhouetted at dusk South Luangwa National Park, Zambia. May.

Will Burrard-Lucas / Yellow-billed stork (Mycteria ibis) colony silhouetted at dusk, South Luangwa National Park, Zambia. May.

Loic Poidevin / Yellow billed stork (Mycteria ibis) in shallow water, Samburu, Kenya, October.

Loic Poidevin / Yellow billed stork (Mycteria ibis) with fish in beak, in water, Samburu, Kenya, October.

Wim van den Heever / Yellow-billed stork (Mycteria ibis) in flight, with nest building material, Chobe National Park, Botswana.

Lou Coetzer / Yellow billed stork (Mycteria ibis) portrait, Chobe River, Botswana, June.

Lou Coetzer / Yellow billed stork (Mycteria ibis) in flight with nesting material, Chobe River, Botswana, August.

Lou Coetzer / Yellow-billed stork (Mycteria ibis) in flight, Chobe River, Botswana, June.

Lou Coetzer / Yellow billed stork (Mycteria ibis) with fish in beak, Chobe River, Botswana, July.

Lou Coetzer / Yellow billed stork (Mycteria ibis) preening, Chobe River, Botswana, August.

Lou Coetzer / Yellow billed stork (Mycteria ibis) in flight, Chobe River, Botswana, July.

Lou Coetzer / Yellow-billed storks (Mycteria ibis) in formation flight, Chobe River, Botswana.

Angelo Gandolfi / A flock of mixed Wood Stork (Mycteria americana) and Roseate Spoonbills (Platalea ajaja) Pantanal, Brazil

Angelo Gandolfi / Wood Stork (Mycteria americana) next to cattle. Pantanal, Brazil

Denis-Huot / Yellow-billed stork (Mycteria ibis) with frog prey, Masai-Mara Game Reserve, Kenya,

Denis-Huot / Yellow-billed stork (Mycteria ibis) fishing, Masai-Mara Game Reserve, Kenya,

Denis-Huot / Yellow-billed stork (Mycteria ibis) group fishing, Lake Magadi, Kenya

Denis-Huot / Yellow-billed stork (Mycteria ibis) fishing, Masai-Mara Game Reserve, Kenya,

Robin Chittenden / Yellow-billed Stork (Mycteria ibis) standing on one leg, The Gambia

David Pattyn / American Wood Ibis (Mycteria americana) feeding on catfish in a drying pool, at the end of the dry season lots of herons of different species gather to feed on the exposed fish. Southern Pantanal, Mat...

David Pattyn / American Wood Ibis (Mycteria americana) feeding on catfish in a drying pool, at the end of the dry season lots of herons of different species gather to feed on the exposed fish. Southern Pantanal, Mat...

David Pattyn / American Wood Ibis (Mycteria americana) feeding on catfish in a drying pool, at the end of the dry season lots of herons of different species gather to feed on the exposed fish. Southern Pantanal, Mat...

Christophe Courteau / American Wood Storks / Ibis flying at dusk (Mycteria americana) Pantanal, Brazil

Christophe Courteau / Yellow billed Stork flying (Mycteria ibis) Okavango Delta, BOTSWANA

Christophe Courteau / Yellow billed Stork fishing in shallow water (Mycteria ibis) Okavango Delta, BOTSWANA

Christophe Courteau / Yellow billed stork {Mycteria ibis} in flight at dusk, Okavango Delta, Botswana.

Christophe Courteau / Yellow billed stork {Mycteria ibis} feeding, Okavango Delta, Botswana.

Christophe Courteau / Yellow billed stork {Mycteria ibis} & Great white Egret {Egretta alba}, Okavango, Botswana.

Christophe Courteau / Portrait of Yellow billed stork {Mycteria ibis} Okavango Delta, Botswana.

Juan Carlos Munoz / American Wood Stork (Mycteria americana) in flight. Everglades National Park, Florida, USA, February.

Juan Carlos Munoz / American Wood Stork (Mycteria americana) colony in mangrove canopy. Everglades National Park, Florida, USA, February.

Juan Carlos Munoz / Wood Stork (Mycteria americana) rear view of head. Everglades National Park, Florida, USA, February.