An adult black vulture, Coragyps atratus, in flight at Golfito, Golfo Dulce, Costa Rica, Central America

Black Vulture (Coragyps atratus), Manuel Antonio National Park, Puntarenas Province, Costa Rica, Central America

South American black vulture (Coragyps atratus brasiliensis), a common scavenger, river mouth near Nosara, Nicoya Peninsula, Guanacaste Province, Costa Rica, Central America

An adult black vulture (Coragyps atratus), perched in a tree on Barro Colorado Island, Panama, Central America

An adult black vulture (Coragyps atratus), perched in a tree on Barro Colorado Island, Panama, Central America

An adult black swan (Cygnus atratus) at the Terra Nostra Botanical Gardens on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe

Adult black vulture (Coragyps atratus) on the Transpantaneira Highway, Mato Grosso, Pantanal, Brazil, South America

Black swan (Cygnus atratus), at sunrise, Kent, England, United Kingdom, Europe

Black swan (Cygnus atratus), at sunrise, Kent, England, United Kingdom, Europe

Black swan, Cygnus atratus, with red beak in North Norfolk, UK

Black swan (cygnus atratus) close,up, head in water foraging for food, slimbridge, uk

Black swan (cygnus atratus) resting with head on back, slimbridge, uk

Black swan (cygnus atratus) feeding at water surface, slimbridge, uk

Helmet urchin or Shingle urchin (Colobocentrotus atratus), Keauhou Bay, Kona, Big Island, Hawaii, United States of America, Pacific

NOTE: High path to top of island used by Snares crested penguins (Eudyptes atratus), Snares Islands, New Zealand, Pacific Ocean.

Snares crested penguins (Eudyptes atratus), swimming off Snares Islands, Snares Islands, New Zealand, Pacific Ocean.

Black swan (Cygnus atratus) swimming in the water, Spain, Europe

Black Vulture (Coragyps atratus), portrait, Everglades National Park, Florida, USA

Black Vulture (Coragyps atratus) in flight, Myakka River State Park, Florida, USA

Black swan (Cygnus atratus) with chick swimming in the water, Spain, Europe

Black Vulture or American Black Vulture (Coragyps atratus), portrait, Everglades National Park, Florida, USA

Close Up Of A Black Swan's (Cygnus Atratus) Head At Valley Of The Temples, Oahu, Hawaii, United States Of America

Hawaii, Oahu, Ahuimanu Valley, Valley of the Temples, Two Black Swans in pond at Byodo-In Temple.