Rick Price / Nankeen night heron (Nycticorax caledonicus) standing on log. Ord River, The Kimberley, Western Australia.

Steven David Miller / Nankeen / Rufous night heron (Nycticorax caledonicus) perched in Eucalyptus tree. North Queensland, Australia.

Steven David Miller / Nankeen / Rufous night heron (Nycticorax caledonicus) perched in Eucalyptus tree. North Queensland, Australia.

Juergen Freund / Nankeen night heron (Nycticorax caledonicus) Daintree , Queensland, Australia

Roger Powell / Rufous night heron (Nycticorax caledonicus) in early morning sunshine. Fogg Dam, Northern Territory, Australia

Brent Stephenson / Adult Nankeen night-heron (Nycticorax caledonicus australasiae) perched in a tree amongst leaves. Labuan Bird Park, Sabah, Borneo. April. Captive.

Karl Seddon / Rufous Night-heron (Nycticorax caledonicus), Australia

Karl Seddon / Rufous Night-heron (Nycticorax caledonicus) juvenile, Australia

Roland Seitre / Rufous night heron (Nycticorax caledonicus) portrait, Noumea, New Caledonia

Roland Seitre / Rufous night heron (Nycticorax caledonicus) portrait, Noumea, New Caledonia

Martin Willis / Rufous Night-heron (Nycticorax caledonicus) juvenile, Eyre Creek, Birdsville, Queensland, Australia

Tim Laman / Nankeen / Rufous night-heron (Nycticorax caledonicus) juvenile, Dimakya Island, Palawan, Philippines, October

Theo Allofs / Rufous Night-Heron (Nycticorax caledonicus) portrait, Australia

Juergen Freund / Nankeen / Rufous night heron (Nycticorax caledonicus) Queensland, Australia

Dave Watts / Nankeen Night Heron {Nycticorax caledonicus} Australia

Dave Watts / Nankeen Night Heron {Nycticorax caledonicus} Australia

Roger Powell / Nankeen Night Heron {Nycticorax caledonicus} in tree, Victoria, Australia.

Julian Hume / Illustration of extinct water birds. Clockwise from top right: spectacled cormorant (Phalacrocorax perspicillatus) - extinct 1852,Bering Island; Reunion ibis (Threskiornis solitarius) - extinct 1710,R...