Bertie Gregory / Northern sea otters (Enhydra lutris kenyoni), mother suckling pup amongst bull kelp, Vancouver Island, British Columbia, Canada, July.

Nick Garbutt / Male Nicobar Pigeon (Caloenas nicobarica) captive, from small offshore islands in SE Asia / Indonesia, including Borneo. Jersey Zoo.

Gerry Ellis / Nicobar Pigeon (Caloenas nicobarica) perching on branch, Indonesia

Pete Oxford / Nicobar pigeon, captive {Caloenas nicobarica} occurs Andaman + Nicobar islands

Pete Oxford / Nicobar pigeon {Caloenas nicobarica} endemic to Andaman and Nicobar islands

Julian Hume / Illustration of extinct pigeons. Clockwise from top right: red-moustached fruit dove (Ptilinopus mercieri tristrami) - extinct 1920,Hivoa,Maquesas; Marquesas fruit dove (Ptilinopus mercieri mercieri)...

Rod Williams / Nicobar Pigeon (Caloenas nicobarica) captive, from South East Asia

Pete Oxford / Nicobar pigeon {Caloenas nicobarica} C Andaman Nicobar islands endemic

Roland Seitre / Nicobar pigeon (Caloenas nicobarica) juvenile, on nest, Indonesia. Captive.

Roland Seitre / Nicobar pigeon (Caloenas nicobarica) on nest, Parc aux Oiseaux, France. Captive, occurs in South East Asia and Indonesia.

Roland Seitre / Nicobar pigeon (Caloenas nicobarica) perched on branch, Malaysia. Captive.

Roland Seitre / Nicobar pigeon (Caloenas nicobarica) perched on branch, Jurong Bird Park, Singapore. Captive.

Roland Seitre / Nicobar pigeon (Caloenas nicobarica) flapping its wings, Jurong Bird Park, Singapore. Captive.