Markus Varesvuo / Common Crossbill (Loxia curvirostra) female perched on a broken branch. Kuusamo, Finland, February.

Markus Varesvuo / Common Crossbill (Loxia curvirostra) foraging on spruce cone from a snowy branch. Kuusamo, Finland, February.

Markus Varesvuo / Common Crossbill (Loxia curvirostra) male and female on snowy branch. Kuusamo, Finland, February.

Alan Williams / Male Common Crossbill (Loxia curvirostra) perched on branch. North Wales, UK, March.

Alan Williams / Male Common Crossbill (Loxia curvirostra) perched on branch. North Wales, UK, March.

Alan Williams / Portrait of a male Common Crossbill (Loxia curvirostra). North Wales, UK, March.

Markus Varesvuo / Common Crossbill (Loxia curvirostra) batting snow off branches to uncover a cone. Kuusamo, Finland, February. Magic Moments book plate, page 96.

Andrew Parkinson / Crossbill (Loxia curvirostra) profile portrait of a passage migrant female on lichen covered rocks. Shetland Islands, Scotland, UK, November (non-ex)

Steve Gettle / Red Crossbill (Loxia curvirostra) male, Michigan

Steve Gettle / Red Crossbill (Loxia curvirostra) male, Michigan

Dave Bevan / Female Red Crossbill (Loxia curvirostra) drinking from woodland pool, UK

Donald M. Jones / Red Crossbill ( Loxia curvirostra) male, western Montana

Donald M. Jones / Red Crossbill ( Loxia curvirostra) juvenile, western Montana

Donald M. Jones / Red Crossbill ( Loxia curvirostra) female, western Montana

Jose B. Ruiz / Male Red / Common Crossbill (Loxia curvirostra) standing at the edge of pond, Pla de Xirau, Alicante, Spain

Jose B. Ruiz / Female Red / Common Crossbill (Loxia curvirostra) standing at the edge of pond, Pla de Xirau, Alicante, Spain

David Kjaer / Red crossbill (Loxia curvirostra) male drinking, Wiltshire, UK

Tim Fitzharris / Red Crossbill (Loxia curvirostra) perching on branch, North America

Shattil & Rozinski / Pair of Red crossbills {Loxia curvirostra} drinking, Colorado, USA

Philippe Clement / Common / Red crossbill {Loxia curvirostra} female with deformed bill in conifer tree, Germany.

Philippe Clement / Common / Red crossbill {Loxia curvirostra} female calling in conifer tree, Germany.

Jose B. Ruiz / Male Red crossbill on pine tree (Loxia curvirostra) Spain

Chris Gomersall / Common crossbill (Loxia curvirostra) adult female in Scots pine, Surrey, UK

Chris Gomersall / Common / Red crossbill (Loxia curvirostra) adult male in Scots pine, Surrey, UK

Paul Hobson / Male Scottish crossbill {Loxia scotica} in Scots pine tree, scotland, UK. Captive.

Flip de Nooyer / Red Crossbill (Loxia curvirostra) two males and one female at waterhole, Europe

Terry Andrewartha / Red crossbill drinking {Loxia curvirostra} UK

Terry Andrewartha / Red crossbill male at water {Loxia curvirostra} UK

Dietmar Nill / Red crossbill in conifer tree, Germany

Dietmar Nill / Male Red crossbill in spruce tree, Germany

Dietmar Nill / Male Red crossbill (Loxia curvirostra) on pine tree, Germany

Eric Sohn Joo Tan/ BIA / Red Crossbill (Loxia curvirostra) female, Bidoup Nui Ba National Park, Vietnam

Eric Sohn Joo Tan/ BIA / Red Crossbill (Loxia curvirostra) female, Bidoup Nui Ba National Park, Vietnam

Ralph Martin/ BIA / Red Crossbill (Loxia curvirostra) male foraging for pine cone seeds, Morocco

Robin Chittenden / Common crossbill (Loxia curvirostra) by puddle Norfolk, Great Britain, UK, April.

Robin Chittenden / Common crossbill (Loxia curvirostra) by puddle Norfolk, UK, April.

Robin Chittenden / Common crossbill (Loxia curvirostra) by puddle Norfolk, UK, April.

Robin Chittenden / Common crossbill (Loxia curvirostra) by puddle Norfolk, UK, April.

Robin Chittenden / Common crossbill (Loxia curvirostra) drinking, with wasp flying towards it, Norfolk, UK, April.

Markus Varesvuo / Common Crossbill (Loxia curvirostra) feeding on aphids, Finland, May

Jose B. Ruiz / Female Red Crossbill on pine (Loxia curvirostra) Spain Alicante

David Kjaer / Red Crossbill male bathing (Loxia curvirostra) England

Steve Knell / Red crossbill female drinking {Loxia curvirostra} UK

Steve Knell / Red crossbill male feeding female sitting at nest {Loxia curvirostra} UK

Dietmar Nill / Male Red crossbill on pine tree (Loxia curvirostra) Germany

Steve Knell / Male Red crossbill feeding female at nest {Loxia curvirostra} England UK

David Cottridge / Red crossbill drinking {Loxia curvirostra} Wiltshire England UK

Ewan Flynn / Common crossbill (Loxia curvirostra) male, perched in Pine tree (Pinus sp.) feeding on a pine cone, Devon, UK. March.

Ewan Flynn / Common crossbill (Loxia curvirostra) male, perched in Pine tree (Pinus sp.) feeding on a pine cone, Devon, UK. March.

Loic Poidevin / Red crossbill (Loxia curvirostra) standing in shallow water, Navarre, Spain. April.

Loic Poidevin / Red crossbill (Loxia curvirostra) standing in shallow water, Navarre, Spain. April.

Pal Hermansen / Red crossbill (Loxia curvirostra) feeding on spruce cone. Innlandet, Norway. December.

Pal Hermansen / Red crossbill (Loxia curvirostra) flying, carrying cone in beak. Innlandet, Norway. December.

David Tipling / Female Common crossbill (Loxia curvirostra) drinking at water's edge, Kelling Heath, Norfolk, UK. March.

David Tipling / Male Red crossbill (Loxia curvirostra) feeding on pine cone seeds, Kelling Heath, Norfolk, UK. March.

Paul Hobson / Crossbills (Loxia curvirostra) pair in tree, silhouetted against a rainbow. The male is on the right. Sheffield, UK. May.