Staffan Widstrand / Wild Wonders of China / Crested ibis (Nipponia nippon) flying, Yangxian Nature Reserve, Shaanxi, China, September.

Marie Read / Flock of White ibis (Eudocimus albus) in breeding plumage, at rookery on water's edge of the mangrove-covered island, Tampa Bay, Florida, USA, March

Juan Carlos Munoz / Great egret (Ardea alba) perched in a tree, with an American White Ibis (Eudocimus albus) in flight, Everglades National Park, Florida, USA.

Felicity Lanchester,Felicity Lanchester / Mixed group of Cattle egrets (Bubulcus ibis), Great egrets (Ardea alba), African openbill storks (Anastomus lamelligerus) and Sacred ibis (Threskiornis aethiopicus) gathering to roost, Selous Game Res...

Axel Gomille,Axel Gomille / Black-headed Ibis / Oriental Ibis (Threskiornis melanocephalus), Karnataka, India

Axel Gomille,Axel Gomille / Black-headed Ibis / Oriental Ibis (Threskiornis melanocephalus), Karnataka, India

Mary McDonald / Flock of Cattle Egrets (Bubulcus ibis) in roosting trees at dusk, Imba Ndutu, Serengeti NP, Tanzania, East Africa.

Wild Wonders of Europe / Allofs / White Camargue horse stallion with a Cattle egret (Bulbulcus ibis) on his back, Camargue, France, April 2009

Rolf Nussbaumer / White faced ibis {Plegadis chihi} Welder Wildlife Refuge, Sinton, Texas, USA.

Richard Du Toit / White Rhinoceros (Ceratotherium simum) mother and calf with Cattle Egret (Bubulcus ibis), Rietvlei Nature Reserve, South Africa

Thomas Mangelsen / White Ibis (Eudocimus albus) trio feeding at sunset, Ding Darling National Wildlife Refuge, Sanibel Island, Florida

Staffan Widstrand / Wild Wonders of China / Black-headed ibis (Threskiornis melanocephalus) Tainan, Taiwan.

Nick Upton / Great white egret (Egretta alba / Ardea alba) flying in to join Cattle egrets (Bubulcus ibis) and some Great cormorants (Phalacrocorax carbo) roosting in a Willow tree at dusk, Somerset Levels wetland...

Guy Edwardes / Yellow-billed stork (Mycteria Ibis) in flight. Chobe River, Chobe National Park, Botswana.

Jack Dykinga / White-faced Ibis (Plegadis chihi) forage in flooded fields, during migration. Marana, Sonoran Desert, Arizona, USA.

Jack Dykinga / White-faced ibis (Plegadis chihi) and Black-necked stilt (Himantopus mexicanus) foraging in flooded fields. Marana, Sonoran Desert, Arizona, USA. March.

Jack Dykinga / White-faced ibis (Plegadis chihi) and Black-necked stilt (Himantopus mexicanus) foraging in flooded fields. Marana, Sonoran Desert, Arizona, USA. March.

Doug Gimesy / Australian white ibis (Threskiornis molucca) recovering from surgery to remove fishing hook in stomach, held by veterinary nurse. Captive, to be released on recovery. Currumbin Wildlife Hospital, Gold...

Sylvain Cordier / Marabou stork (Leptoptilos crumenifer), Great white pelican (Pelecanus onocrotalus) and African sacred ibis (Threskiornis aethiopicus) group waiting for fishermen to discard fish remains. Lake Ziway,...

Philippe Clement / Madagascan ibis (Lophotibis cristata) perched in tree, native to Madagascar, Africa. Captive. Digital composite

Nick Upton / Great white egret (Egretta alba) hunting for fish in a marshland pool, with a group of Cattle egrets (Bubulcus ibis) in the background, Somerset Levels, UK, October 2019

Claudio Contreras / White Ibis (Eudocimus albus) feeding, Ria Celestun Biosphere Reserve, Yucatan Peninsula, Mexico, January

Claudio Contreras / White Ibis (Eudocimus albus), Ria Celestun Biosphere Reserve, Yucatan Peninsula, Mexico, January

Claudio Contreras / White Ibis (Eudocimus albus), Ria Celestun Biosphere Reserve, Yucatan Peninsula, Mexico, January

Claudio Contreras / White Ibis (Eudocimus albus) feeding, Ria Celestun Biosphere Reserve, Yucatan Peninsula, Mexico, January

Claudio Contreras / White Ibis (Eudocimus albus), Ria Celestun Biosphere Reserve, Yucatan Peninsula, Mexico, January

Claudio Contreras / White Ibis (Eudocimus albus), Ria Celestun Biosphere Reserve, Yucatan Peninsula, Mexico, January

Staffan Widstrand / Wild Wonders of China / Crested ibis (Nipponia nippon) in water, Yangxian nature reserve, Shaanxi, China

Heather Angel / Crested ibis (Nipponia nippon) group roosting in tree at dusk. Captive bred. Yangxian, Shaanxi, China.

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

George Sanker / American white ibis (Eudocimus albus) wading in morning light. Myakka River State Park, Florida, USA, March.

George Sanker / American white ibis (Eudocimus albus) wading in morning light. Myakka River State Park, Florida, USA, March.

George Sanker / American white ibis (Eudocimus albus) feeding amongst plants in morning light. Myakka River State Park, Florida, USA, March.

George Sanker / American white ibis (Eudocimus albus) foraging in morning light. Myakka River State Park, Florida, USA, March.

Karine Aigner / Stomach contents of invasive Burmese pythons (Python bivittatus) are separated and laid out on sheets in order to identify them. Some of the contents seen here are the feet and feathers of a white ibi...

Karine Aigner / Stomach contents of invasive Burmese pythons (Python bivittatus) are separated and laid out on sheets in order to identify them. Some of the contents seen here are the feet and feathers of a white ibi...

Marie Read / Avian feeding frenzy with a flock of White Pelicans (Pelecanus erythrorhynchos) swimming along a channel chasing school of fish. A mixed flock of long-legged waders, including Great Egrets (Ardea alba...

Staffan Widstrand / Wild Wonders of China / Great white egret (Ardea alba), Cattle egret (Bubulcus ibis), Little egret (Egretta garzetta) and Intermediate egret (Ardea intermedia) all together in the Yangtze river at the Hubei Tian'ezhou Mi...

Staffan Widstrand / Wild Wonders of China / Pere David's deer / Milu (Elaphurus davidianus), with Great white egrets (Ardea alba), Cattle egrets (Bubulcus ibis), Little egrets (Egretta garzetta) and Intermediate egrets (Ardea intermedia), H...

Staffan Widstrand / Wild Wonders of China / Pere David's deer / Milu (Elaphurus davidianus), with Great white egrets (Ardea alba), Cattle egrets (Bubulcus ibis), Little egrets (Egretta garzetta) and Intermediate egrets (Ardea intermedia), H...

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

Lynn M. Stone / White Ibis (Eudocimus albus) hunting for Mole crabs (Emerita sp) along shore of Gulf of Mexico. Tierra Verde, Pinellas County, Florida, USA.

Lynn M. Stone / Bald cypress (Taxodium distichum) trees, predominantly White ibis (Eudocimus albus) perching in branches and Snowy egret (Egretta thula) in flight. Everglades National Park, Florida, USA. April 2018.

Claudio Contreras / White Ibis (Eudocimus albus) walking, San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, February

Klein & Hubert / Madagascan Ibis (Lophotibis cristata) walking on forest floor, tropical forest, Madagascar.

Klein & Hubert / Madagascan Ibis (Lophotibis cristata) walking on forest floor, tropical forest, Madagascar.

Klein & Hubert / Madagascan Ibis (Lophotibis cristata) walking on forest floor, tropical forest, Madagascar.

Klein & Hubert / Madagascan Ibis (Lophotibis cristata)head portrait, Madagascar.