David Tipling / People watching flock of Japanese / Red crowned cranes {Grus japonensis} Akan, Hokkaido, Japan, February 2008

Mark Bowler / Victoria crowned pigeon (Goura victoria) head portrait, vulnerable species, captive

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) pair displaying, calling, in snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Rolf Nussbaumer / Green cheeked / Red crowned amazon parrot at nest hole, Texas, USA.

Michael & Patricia Fogden / Green-crowned Brilliant (Heliodoxa jacula) hummingbird juvenile male feeding at and pollinating Ginger (Costus montanus) flowers, Monteverde Cloud Forest Reserve, Costa Rica

Konrad Wothe / Red-crowned Crane (Grus japonensis) pair foraging in snow, Hokkaido, Japan

Konrad Wothe / Red-crowned Crane (Grus japonensis) pair calling and jumping during courtship, Hokkaido, Japan

Konrad Wothe / Red-crowned Crane (Grus japonensis) pair calling during courtship dance at their wintering grounds, Hokkaido, Japan

Konrad Wothe / Red-crowned Crane (Grus japonensis) flock feeding in snow, Tsurui Ito Sanctuary, Japan

Michael & Patricia Fogden / Black-crowned Central American Squirrel Monkey (Saimiri oerstedii) male in rainforest, Costa Rica

Konrad Wothe / Red-crowned Crane (Grus japonensis) couple in courtship display, Hokkaido, Japan

Ole Jorgen Liodden / Red-crowned Parakeet (Cyanoramphus novaezelandiae) perched, vulnerable species, Auckland Island, New Zealand. November.

Ole Jorgen Liodden / Red-crowned Parakeet (Cyanoramphus novaezelandiae) portrait, vulnerable species, Auckland Island, New zealand. November.

Brent Stephenson / Red crowned parakeet (Cyanoramphus novaezelandiae) feeding amongst tangled vines, Tiritiri Matangi Island, Auckland, New Zealand.

Brent Stephenson / Red crowned parakeet (Cyanoramphus novaezelandiae) Tiritiri Matangi Island, Auckland, New Zealand.

Hiroya Minakuchi / Red-crowned Woodpecker (Melanerpes rubricapillus), Costa Rica

Brent Stephenson / Red-crowned Parakeet (Cyanoramphus novaezelandiae) perched on a log on forest floor. Tiritiri Matangi Island, Auckland, New Zealand, September.

Mike Read / Red crowned parakeet (Cyanoramphus novaezelandia / saisseti) Ulva Island, New Zealand

Edwin Giesbers / Red-crowned / Japanese crane (Grus japonensis) preening, captive, endangered

Edwin Giesbers / Red-crowned / Japanese crane (Grus japonensis) portrait, captive, endangered

Edwin Giesbers / Red crowned / Japanese crane (Grus japonensis) portrait, captive, endangered

Konrad Wothe / Red-crowned Parakeet (Cyanoramphus novaezelandiae) in profile. Enderby Island, New Zealand.

Konrad Wothe / Red-crowned Parakeet (Cyanoramphus novaezelandiae) perched. Enderby Island, New Zealand.

Nature Production / Japanese / Manchurian / Red-crowned crane (Grus japonensis) with chick resting on its back, Kushiro, Hokkaido, Japan, Endangered, June

Nature Production / Japanese / Manchurian / Red-crowned crane (Grus japonensis) and chick, Kushiro, Hokkaido, Japan, Endangered, June

Nature Production / Japanese / Manchurian / Red-crowned crane (Grus japonensis) two adults vocalising to each other, Kushiro, Hokkaido, Japan, Endangered, December

ZSSD / Red-crowned Crane (Grus japonensis) displaying, native to Asia

Luiz Claudio Marigo / Black-crowned Tityra (Tityra inquisitor) male perched among red leaves in Serrinha do Alambari Environmental Protection Area. Rio de Janeiro State, South-eastern Brazil, October.

Mark Hughes / Red-fronted Parakeet (Cyanoramphus novaezelandiae), Karori, Wellington, New Zealand

Mark Hughes / Red-fronted Parakeet (Cyanoramphus novaezelandiae) feeding, Somes Island, New Zealand

Scott Leslie / Golden-crowned Kinglet (Regulus satrapa) in red maple, Nova Scotia, Canada

Scott Leslie / Golden-crowned Kinglet (Regulus satrapa) calling in red maple, Nova Scotia, Canada

Pete Oxford / Red-crowned Woodpecker (Melanerpes rubricapillus) feeding on fruit, Orinoco River, north of Puerto Ayacucho, Apure, Venezuela

Anup Shah / Two Grey / Southern Crowned cranes (Balearica regulorum) silhouetted, one flying, one in tree at sunset, Masai Mara National Reserve, Kenya. February.

Murray Cooper / Red-crowned Woodpecker (Melanerpes rubricapillus) male, Colombia

Chien Lee / Red-crowned Barbet (Megalaima rafflesii), Semengoh Wildlife Rehabilitation Centre, Malaysia

Claudio Contreras / Red crowned / Green cheeked amazon parrot (Amazona viridigenalis) in nest hole, captive, Tamaulipas, northeast Mexico, June

David Tipling / Japanese / Red crowned cranes {Grus japonensis} pair calling, Akan, Hokkaido, Japan, February

David Tipling / Japanese / Red crowned cranes {Grus japonensis} pair calling, Akan, Hokkaido, Japan, February

David Tipling / Japanese / Red crowned cranes {Grus japonensis} pair in flight, Akan, Hokkaido, Japan, February

David Tipling / Japanese / Red crowned crane {Grus japonensis} portrait, Akan, Hokkaido, Japan, February

David Tipling / Japanese / Red crowned cranes {Grus japonensis} in snow, Akan, Hokkaido, Japan, February

Stephen Belcher / Red-crowned Crane (Grus japonensis) pair courting, Hokkaido, Japan

Stephen Belcher / Red-crowned Crane (Grus japonensis) pair courting, Hokkaido, Japan

Stephen Belcher / Red-crowned Crane (Grus japonensis) pair, Hokkaido, Japan

Stephen Belcher / Red-crowned Crane (Grus japonensis) pair flying, Hokkaido, Japan

Stephen Belcher / Red-crowned Crane (Grus japonensis) landing, Hokkaido, Japan

Stephen Belcher / Red-crowned Crane (Grus japonensis) in partially frozen pond, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned Crane (Grus japonensis), adult flying, Tsurui-Ito Tancho Sanctuary, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned Crane (Grus japonensis), adult flying, Tsurui-Ito Tancho Sanctuary, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis), flock standing in water of the Setsuri-River, where they rest for the night, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis)two feeding on the snow, Tsurui-Ito Tancho Sanctuary, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) flock in snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) flock in snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) pair displaying, calling, in snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis)flock feeding and displaying in snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) pair displaying, calling, in snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis)pair in snow-covered landscape, snowing, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis)flying through snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) flying through snow, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) pair displaying, calling, in snow, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) flock standing in water of the Setsuri river where they roost overnight, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) flock standing in water of the Setsuri river where they roost overnight, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) flock standing in water of the Setsuri river where they roost overnight, Kushiro-Shitsugen National Park, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis), pair displaying, calling, in snow, Tsurui-Ito Tancho Sanctuary, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis), pair displaying, calling, in snow, Tsurui-Ito Tancho Sanctuary, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) preening in snow, Tsurui-Ito Tancho Sanctuary, Hokkaido, Japan

Kerstin Hinze / Japanese / Red-crowned crane (Grus japonensis) two cranes in a snow-covered landscape, Tsurui, Kushiro-Shitsugen National Park, Hokkaido, Japan

Tui De Roy / Red-fronted Parakeet (Cyanoramphus novaezelandiae) eating, Enderby Island, Auckland Islands, sub-Antarctic New Zealand

Rob Brown / Red-fronted Parakeet (Cyanoramphus novaezelandiae) portrait, Enderby Island, New Zealand

Barry Mansell / Ruby crowned Kinglet (Regulus calundula) male amongst branches. North Florida, USA

Nature Production / Japanese / Manchurian / Red-crowned Crane {Grus japonensis} chicks on parent's back, Hokkaido, Japan

Rolf Nussbaumer / Pair of Green Cheeked / Red-crowned Parrot (Amazona viridigenalis) at nesting cavity in palm tree, Brownsville, Rio Grande Valley, Texas, USA. April 2001

Konstantin Mikhailov / Rings of reeds in Lake Khanka, Khankayskiy Zapovednik / Reserve, Ussuriland, SE Siberia, Russia. Breeding site of endangered Red-crowned crane and Parrotbills, feeding site of Egrets and Oriental Whit...

Igor Shpilenok / Japanese / Red-crowned crane pair {Grus japonensis} Khingansky Zapovednik, Russia.

Winfried Wisniewski / Red-crowned Crane (Grus japonensis) flying, Japan

Winfried Wisniewski / Red-crowned Crane (Grus japonensis) pair in courtship dance, Japan

Winfried Wisniewski / Red-crowned Crane (Grus japonensis) courting pair in snow, Japan

Winfried Wisniewski / Red-crowned Crane (Grus japonensis) courting, Japan

Winfried Wisniewski / Red-crowned Crane (Grus japonensis) courting pair in winter, Japan

Xi Zhinong / Red-crowned Crane (Grus japonensis) adult flying, Heilongjiang Province, China

Xi Zhinong / Red-crowned Crane (Grus japonensis) three standing on snowy ground, Zhalong Nature Reserve, Heilongjiang Province, China

Michael & Patricia Fogden / Green-crowned Brilliant (Heliodoxa jacula) hummingbird feeding and pollinating Spiral Flag (Costus sp) ginger flowers, Monteverde Cloud Forest Reserve, Costa Rica

Konrad Wothe / Red-crowned Crane (Grus japonensis) pair calling during courtship, Hokkaido, Japan

Pete Oxford / Blue-crowned Trogon (Trogon curucui) male, perched on branch, singing, Manu National Park, Peru

Konrad Wothe / Red-crowned Crane (Grus japonensis) pair eating, Hokkaido, Japan

Konrad Wothe / Red-crowned Crane (Grus japonensis) calling during courtship, Hokkaido, Japan

Tui De Roy / Red-fronted Parakeet (Cyanoramphus novaezelandiae) eating bidibid seeds, Enderby Island, Auckland Group, New Zealand

Mark Hughes / Red-fronted Parakeet (Cyanoramphus novaezelandiae), Karori Wildlife Sanctuary, Wellington, New Zealand