Donald M. Jones / Glossy Ibis (Plegadis falcinellus), central Florida

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} dispalying in wetland, sequence 2/2, Donana NP, Spain

Rolf Nussbaumer / Glossy ibis, winter plumage {Plegadis falcinellus} Everglades, Florida, USA

Loic Poidevin / Glossy ibis (Plegadis falcinellus) foraging, Vendeen Marsh, Vendee, France, October.

Hans Glader/ BIA / Glossy Ibis (Plegadis falcinellus) flying, Lesvos, Greece

Louis-Marie Preau / Glossy Ibis (Plegadis falcinellus) Ichkeul National Park UNESCO World Heritage Site, Tunisia, April.

John Waters / Glossy ibis (Plegadis falcinellus) feeding at dawn, Ham Wall RSPB Reserve, Somerset Levels, England, UK, December.

John Waters / Glossy ibis (Plegadis falcinellus) feeding at dawn, Ham Wall RSPB Reserve, Somerset Levels, England, UK, December.

John Waters / Glossy ibis (Plegadis falcinellus) feeding at dawn, Ham Wall RSPB Reserve, Somerset Levels, England, UK, December.

John Waters / Glossy ibis (Plegadis falcinellus) feeding at dawn, Ham Wall RSPB Reserve, Somerset Levels, England, UK, December.

David Welling / Glossy ibis (Plegadis falcinellus) in breeding plumage, feeding in the Los Angeles River, California, USA. June.

David Welling / Glossy ibis (Plegadis falcinellus) in breeding plumage, feeding in the Los Angeles River, California, USA. June.

Steve Gettle / Glossy Ibis (Plegadis falcinellus) flock flying, J. Clark Salyer National Wildlife Refuge, North Dakota

Jean E. Roche / Conservationist ringing Glossy ibis (Plegadis falcinellus) in Tamarisk marshland, Scamandre Nature Reserve, Camargue, France, May 2016.

Jean E. Roche / Glossy ibis (Plegadis falcinellus) egg in nest, in Tamarisk (Tamarix sp.) Scamandre Nature Reserve, Camargue, France, May.

Jean E. Roche / Glossy ibis (Pleagadis falcinellus) nest with eggs, Scamandre Marsh, Camargue, France, June.

Jean E. Roche / Glossy ibis (Pleagadis falcinellus) nest with eggs, Scamandre Marsh, Camargue, France, June.

Jean E. Roche / Glossy ibis (Plegadis falcinellus) in flight, Scamandre Nature Reserve, Camargue, France, June.

Jean E. Roche / Glossy ibises (Plegadis falcinellus) in flight, Scamandre Nature Reserve, Camargue, France, June.

Jean E. Roche / Gloss ibis (Plegadis falcinella) juvenile covered in pond weed, from marshland in Scamandre Nature Reserve, Camargue, France, June.

Roger Powell / Glossy ibis (Plegadis falcinellus)walking past. Leaning Tree Lagoon, Northern Territory, Australia

Bernard Castelein / Glossy ibis (Plegadis falcinellus) in tall reeds, Ankarafantsika National Park, Madagascar

Bernard Castelein / Glossy ibis (Plegadis falcinellus) in flight carrying nest material, Ankarafantsika National Park, Madagascar

Roger Powell / Glossy ibis (Plegadis falcinellus) feeding along a muddy creek. Rolao, Castro Verde, Alentejo, Portugal, May.

Roger Powell / Glossy ibis (Plegadis falcinellus) feeding along a muddy creek. Rolao, Castro Verde, Alentejo, Portugal, May.

Roger Powell / Glossy ibis (Plegadis falcinellus) feeding along a muddy creek. Rolao, Castro Verde, Alentejo, Portugal, May.

Roger Powell / Glossy ibis (Plegadis falcinellus) group of three landing to feed. Rolao, Castro Verde, Alentejo, Portugal, May.

Roger Powell / Glossy ibis (Plegadis falcinellus) group of four landing to feed. Rolao, Castro Verde, Alentejo, Portugal, May.

Roger Powell / Glossy ibis (Plegadis falcinellus) group feeding. One adult bird catching a large worm. Rolao, Castro Verde, Alentejo, Portugal, May.

Roger Powell / Glossy ibis (Plegadis falcinellus) flock feeding. One bird catching a large worm. Rolao, Castro Verde, Alentejo, Portugal, May.

Loic Poidevin / Glossy ibis (Plegadis falcinellus) feeding in grass, Keoladeo National Park, India, April

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) silhouetted in flight, scarce visitor to UK, Norfolk, England, UK, January

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) foraging, scarce visitor to UK, Norfolk, England, UK, January

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) scarce visitor to UK, Norfolk, England, UK, January

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) two in field, scarce visitor to UK, Norfolk, England, UK, January

Walter Soestbergen / Glossy Ibis (Plegadis falcinellus), Drachten, Netherlands

Walter Soestbergen / Glossy Ibis (Plegadis falcinellus), Drachten, Netherlands

Zoltan Nagy / Glossy Ibis (Plegadis falcinellus) foraging in the Danube Delta, Romania. June.

Zoltan Nagy / Glossy Ibises (Plegadis falcinellus) foraging in the Danube Delta, Romania. June

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) in flight, Norfolk, England, UK, November.

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) Norfolk, England, UK, November.

Lou Coetzer / Glossy ibis (Plegadis falcinellus) standing in shallow water, Chobe River, Botswana, October.

Lou Coetzer / Glossy ibis (Plegadis falcinellus) in flight, Chobe River, Botswana, April.

Hans Glader / Glossy Ibis (Plegadis falcinellus) flying, Greece

Walter Soestbergen / Glossy Ibis (Plegadis falcinellus), Netherlands

Walter Soestbergen / Glossy Ibis (Plegadis falcinellus), Netherlands

Walter Soestbergen / Glossy Ibis (Plegadis falcinellus) preening, Netherlands

Walter Soestbergen / Glossy Ibis (Plegadis falcinellus) preening, Netherlands

Greg Oakley / Glossy Ibis (Plegadis falcinellus), Victoria, Australia

Wild Wonders of Europe / Lundgren / Ten Glossy ibises (Plegadis falcinellus) in flight, Danube Delta, Romania, June.

Ralph Martin / Glossy Ibis (Plegadis falcinellus), Oman

Ralph Martin / Glossy Ibis (Plegadis falcinellus), Oman

Mario Suarez Porras / Glossy Ibis (Plegadis falcinellus), Asturias, Spain

Mario Suarez Porras / Glossy Ibis (Plegadis falcinellus), Asturias, Spain

Mario Suarez Porras / Glossy Ibis (Plegadis falcinellus), Asturias, Spain

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) wading in water, Lesvos, Greece, April

LYNN M. STONE / Glossy Ibis (Plegadis falcinellus) foraging in floating bed of hydrilla on freshwater lake. Sarasota, Florida, USA, April.

LYNN M. STONE / Glossy Ibis (Plegadis falcinellus) foraging in shallow river on foggy spring morning. Sarasota County, Florida, USA, April.

LYNN M. STONE / Glossy Ibis (Plegadis falcinellus) foraging in shallows of lake. Sarasota, Florida, USA, March.

Loic Poidevin / Glossy Ibis (Plagadis falcinellus) in profile. Breton Marsh, French Atlantic Coast, January.

Loic Poidevin / Glossy Ibis (Plagadis falcinellus) in profile. Breton Marsh, French Atlantic Coast, January.

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) standing in water. Lesvos, Greece, May.

Dave Bevan / Glossy ibis (Plegadis falcinellus) walking through grassland pool, Carmarthenshire, Wales, UK, September 2009

Dave Bevan / Glossy ibis (Plegadis falcinellus) group feeding in grass field, Carmarthenshire, Wales, UK, September 2009

Dave Bevan / Glossy ibis (Plegadis falcinellus) group feeding in grass field, Carmarthenshire, Wales, UK, September 2009

Hanne & Jens Eriksen / Glossy ibis {Plegadis falcinellus} in flight, Oman, January

Vincent Grafhorst / Glossy Ibis (Plegadis falcinellus) standing in shallow water with reflection, Gaborone Game Reserve, Botswana

Vincent Grafhorst / Glossy Ibis (Plegadis falcinellus) flying, Gaborone Game Reserve, Botswana

Angelo Gandolfi / Glossy Ibis (Plegadis falcinellus) flock flying over a Cork Oak tree (Quercus ruber), Coto del Rey area, Coto Donana National Park, Andalusia, Spain. Probably overwintering during migration.

Rod Williams / Glossy Ibis (Plegadis falcinellus) standing in patch of sunlight, drying out after bathing, Lamington National Park, SE Queensland, Australia, March

Juan Carlos Munoz / Glossy ibis (Plegadis falcinellus) feeding in wetlands, Andalucia, Spain, March

Juan Carlos Munoz / Four Glossy ibis (Plegadis falcinellus) feeding in wetlands, Andalucia, Spain, March

Hanne & Jens Eriksen / Glossy ibis {Plegadis falcinellus} feeding and displaying, Dubai, UAE

Scott Leslie / Glossy Ibis (Plegadis falcinellus) flying, Merrit Island National Wildlife Refuge, Florida

Jose B. Ruiz / Portrait of Glossy ibis {Plegadis falcinellus} feeding in wetlands with beak open, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} scratching sequence 1/2, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} scratching sequence 2/2, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} foraging in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} with tag, foraging amongst wetland vegetation, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} wading in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} wading amongst wetland vegetation, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} feeding amongst wetland vegetation, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} feeding in wetlands, Donana NP, Spain

Jose B. Ruiz / Silhouettes of Glossy ibis {Plegadis falcinellus} with wings outstretched standing in water, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} with tag, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} with tag, displaying in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} wading in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} wading in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} dispalying in wetland, sequence 1/2, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} wading in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} standing in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} portrait, in wetlands, Donana NP, Spain

Jose B. Ruiz / Glossy ibis {Plegadis falcinellus} wading in wetlands, Donana NP, Spain