Cyril Ruoso / Protection against electrocution for big birds like vultures, France

Tui De Roy / Yellow-crowned night heron (Nyctanassa / Nyctanassa violacea) portrait. Galapagos Islands, Ecuador, June.

Tim Laman / Yellow-crowned Night Heron (Nyctanassa violacea) standing on lava rock. Santiago Island, Galapagos

Christophe Courteau / Yellow crowned night heron in cave {Nyctanassa violacea} Santiago Is, Galapagos.

Tui De Roy / Yellow-crowned night heron (Nyctanassa / Nyctanassa violacea) juvenile. Galapagos Islands, Ecuador, December.

LYNN M. STONE / Yellow-Crowned Night Heron (Nyctanassa / Nyctanassa violacea) sub-adult with caught ghost crab on beach dune. Tampa Bay, Florida, USA, November.

LYNN M. STONE / Yellow-Crowned Night Heron (Nyctanassa / Nyctanassa violacea) adult in non-breeding plumage foraging at low tide. Tarpon Springs, Florida, USA, November.

Gerrit Vyn / Yellow-crowned Night-Heron (Nyctanassa violacea) with fiddler crab prey. Plaquemines Parish, Louisiana, USA, July.

Gerrit Vyn / Yellow-crowned Night-Heron (Nyctanassa violacea) head portrait, Plaquemines Parish, Louisiana, USA. July.

Tim Laman / Yellow-crowned night heron (Nyctanassa violacea) Sanibel Island, Florida, USA.

George Sanker / Yellow crowned night heron (Nyctanassa violacea) feeding, Tampa Bay, Florida, Winter

Claudio Contreras / Yellow-crowned night heron (Nyctanassa violacea) beside water, Puerto Vallarta, Pacific Ocean, Mexico, November

Rob Tilley / Yellow-Crowned Night Heron (Nyctanassa violacea) foraging on seashore, Sanibel Island, Florida, USA

Rob Tilley / Yellow-Crowned Night Heron (Nyctanassa violacea) Sanibel Island, Florida, USA

Rob Tilley / Yellow-Crowned Night Heron (Nyctanassa violacea) Sanibel Island, Florida, USA

Rob Tilley / Yellow-Crowned Night Heron (Nyctanassa violacea) walking along seashore, Sanibel Island, Florida, USA

Adrian Davies / Yellow-crowned night heron (Nyctanassa violacea), Sanibel Island, Florida, USA.

Kevin Schafer / Yellow-crowned Night-Heron (Nyctanassa violacea), Galapagos Islands, Ecuador

Thomas Marent / Yellow-crowned Night-Heron (Nyctanassa violacea) perched on branch, Cahuita National Park, Costa Rica

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea) standing on one leg, Florida

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea) walking through wetland plants, Florida

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea) standing in grass, Florida

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea) standing in the water, Florida

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea), Florida

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea), Florida

Winfried Wisniewski / Yellow-crowned Night-Heron (Nyctanassa violacea) eating a crab, Florida

Tim Laman / Immature yellow-crowned night heron (Nyctanassa violacea) Genovesa / Tower Island, Galapagos, June

Tim Laman / Immature yellow-crowned night heron (Nyctanassa violacea) sunning, Genovesa / Tower Island, Galapagos, June

Nick Garbutt / Yellow-crowned Night Heron (Nyctanassa violacea) amongst lava on shore line. Isla Floreana, Galapagos Islands.

Nick Garbutt / Yellow-crowned Night Heron (Nyctanassa violacea) preying on turtle hatchling amongst lava on shore line. Isla Floreana, Galapagos Islands.

Patrick Morris / Yellow crowned night heron {Nyctanassa violacea} Espanola Is, Galapagos

Pete Oxford / Yellow-crowned Night-Heron (Nyctanassa violacea) juvenile, Tower Island, Galapagos Islands, Ecuador

Rolf Nussbaumer / Yellow-crowned Night-Heron {Nycticorax / Nyctanassa violacea} adult preening, Rio Grande Valley, Texas, USA

Pete Oxford / Juvenile Yellow-crowned night heron (Nyctanassa violacea), Tower / Genovesa Island, Galapagos Islands, South America

Tom Vezo / Yellow crowned night heron {Nyctanassa violacea} walking, Florida, USA

Tom Vezo / Yellow crowned night heron {Nyctanassa violacea} feeding, Florida, USA

Tom Vezo / Yellow crowned night heron {Nyctanassa violacea} perching on fence, Texas, USA

Steven David Miller / Yellow crowned night heron {Nyctanassa violacea} Mangrove Is, Florida, USA

George McCarthy / Yellow crowned night heron {Nyctanassa violacea} Everglades NP, Florida, USA

Bernard Castelein / Yellow-crowned night heron collecting nesting material {Nyctanassa violacea} Sanibel Is, Florida

Pete Oxford / Yellow crowned night heron, juvenile {Nyctanassa violacea} Machalilla NP. Ecuador

Barry Mansell / Yellow crowned night heron with chicks at nest {Nyctanassa violacea} Florida, USA.

Pete Oxford / Yellow-crowned Night-Heron (Nyctanassa violacea) perched in tree, Machalilla National Park, Ecuador

Tom Vezo / Yellow-crowned Night-Heron (Nyctanassa violacea) calling from perch, Texas

Tom Vezo / Yellow-crowned Night-Heron (Nyctanassa violacea) wading among Mangrove roots, Florida

Jim Brandenburg / Yellow-crowned Night-Heron (Nyctanassa violacea), Florida

Steven David Miller / Yellow crowned night heron {Nyctanassa violacea} Sanibel Is, Florida, US Ding darling

Pete Oxford / Juvenile yellow crowned night heron {Nyctanassa violacea} sunbathing, Tower/Genovesa Is, Galapagos

Tom Vezo / Yellow crowned night heron, Florida, USA

George McCarthy / Yellow crowned night heron, Everglades, Florida, USA

George McCarthy / Yellow crowned night heron juvenile, Everglades, Florida, USA

George McCarthy / Yellow crowned night heron, Everglades, Florida, USA

George McCarthy / Yellow crowned night heron, Everglades, Florida, USA

George McCarthy / Yellow crowned night heron, Everglades, Florida, USA

George McCarthy / Yellow crowned night heron, Everglades, Florida, USA

George McCarthy / Yellow crowned night heron (Nyctanassa violacea). Florida Everglades, USA

George McCarthy / Yellow crowned night heron adult in breeding plumage, Everglades, Florida, USA

Steve Gettle / Yellow-crowned Night Heron (Nyctanassa violacea), J. N. Ding Darling National Wildlife Refuge, Florida

Robin Chittenden / Yellow-crowned night heron (Nyctanassa violacea) portrait, Costa Rica, March

Steven David Miller / Yellow crowned night heron chick in nest. Florida, USA. {Nyctanassa violacea}