Sebastian Kennerknecht / American Black Vulture (Coragyps atratus) flying near skyscrapers, Ancon Hill, Panama City, Panama

Bence Mate / Black vulture (Coragyps atratus) squabbling with King vulture (Sarcoramphus papa) Costa Rica.

Bence Mate / Black vulture (Coragyps atratus) face to face with King vulture (Sarcoramphus papa) Costa Rica.

Edwin Giesbers / Black swan (Cygnus atratus) captive

Solvin Zankl / Black vulture (Coragyps atratus) feeding on Olive ridley sea turtle hatchling (Lepidochelys olivacea) Playa Ostional, Costa Rica, Pacific coast. November.

Bence Mate / Head portraits of King vulture (Sarcoramphus papa) right, and Black vulture (Coragyps atratus) left. Santa Rita, Costa Rica. WINNER: Eric Hosking Award portfolio image 6/6 - Wildlife Photographer of t...

Nick Gordon / Black vultures (Coragyps atratus) scavenging on rubbish tip, Brazil

Andy Rouse / Black swan (Cygnus atratus) drinking with reflection in water, UK

LYNN M. STONE / Captive Black swan {Cynus atratus} portrait, Australia.

LYNN M. STONE / Black swan swimming {Cygnus atratus} C

Pete Oxford / Pair of Black swans {Cygnus atratus} Tasmania, Australia

Loic Poidevin / Black Swans (Cygnus atratus) foraging in water, Marsh of Ile d'Olonne, Vendee, France. July.