David Pattyn / Siskins (Carduelis spinus) fighting over food. Oisterwijk, The Netherlands, March.

Kim Taylor / Two Siskins (Carduelis spinus) fighting, Surrey, UK, March

Mark Hamblin / 2020VISION / Siskin (Carduelis spinus) male at garden pool, Scotland, UK, May. Did you know? The total combined size of the UK’s gardens is bigger than all our National Nature Reserves put together!

Andrew Parkinson / Siskin (Carduelis spinus) male peched on an alder branch, Rothiemurchus Forest, Scotland, UK, April.

Peter Cairns / Siskin (Carduelis spinus) male reflected in garden pool. Scotland, May.

Pete Cairns / Siskin (Carduelis spinus) male perched on frosted Cotoneaster branch, Scotland, UK

Gabriel Rojo / Hooded siskin {Carduelis megellanica} La Pampa, Argetina

WILLIAM OSBORN / Male Siskin feeding in Silver birch tree (Betula pendula) UK

Nick Saunders/ BIA / Pine Siskin (Carduelis pinus), Saskatchewan, Canada

Andy Rouse / Siskin (Carduelis spinus) female perched on branch with catkins Wales, UK, February

Oscar Dewhurst / Eurasian siskin (Carduelis spinus), male, feeding on alder seeds, London, England, UK. December.

Konrad Wothe / Siskin (Carduelis spinus) female, Bavaria, Germany. October.

SCOTLAND: The Big Picture / Siskin (Carduelis spinus) male showing aggression, perched on lichen covered branch. Scotland, UK. May.

Sven Zacek / Eurasian siskin (Carduelis spinus) feeding on Alder (Alnus sp) cones in falling snow. Tartumaa, Southern Estonia. February.

Fabrice Cahez / Eurasian siskin (Spinus spinus) male perched on snowy conifer, Vosges, France, March.

Fabrice Cahez / Eurasian siskin (Spinus spinus) female perched on snowy conifer, Vosges, France, March.

Fabrice Cahez / Eurasian siskin (Spinus spinus) male on tree in autumn, Vosges, France, March.

Gary K. Smith / Siskin (Carduelis spinus) perched on corkscrew hazel with catkins, England, UK. March.

David Tipling / Eurasian siskin (Spinus spinus) male feeding on Alder, Minsmere, Suffolk, England, UK, March.

Robin Chittenden / Eurasian Siskin (Carduelis spinus) perched on Stinging nettle (Urtica dioica), Ceredigion, Wales, UK. August.

Loic Poidevin / Siskin (Carduelis spinus) on Elm (Ulmus minor) branch, Vendee, Pays-de-la-Loire, France. March.

Dave Bevan / Flock of Siskins (Carduelis spinus) feeding on a bird table in falling snow, Carmarthenshire, Wales, UK, February.

Dave Bevan / Flock of Siskins (Carduelis spinus) feeding and squabbling on a seed feeder in falling snow, Carmarthenshire, Wales, UK, February.

Dave Bevan / Slow motion clip of a flock of Siskins (Carduelis spinus) feeding and squabbling on a bird feeder in falling snow, Carmarthenshire, Wales, UK, February.

Dave Bevan / Slow motion clip of two Siskins (Carduelis spinus) fighting on a bird feeder, Carmarthenshire, Wales, UK, February.

Loic Poidevin / Eurasian siskin (Carduelis spinus) perched on a branch, Vendee, France, February.

Loic Poidevin / Eurasian siskin (Carduelis spinus) perched on a branch, Vendee, France, February.

Jussi Murtosaari / Eurasian siskin (Carduelis spinus), male on branch with catkins, Finland, April.

Andy Trowbridge / Female Siskin (Carduelis spinus) perched on lichen covered branch. Southern Norway. August.

Robin Chittenden / Eurasian siskin (Carduelis spinus) Norfolk UK February

Robin Chittenden / Eurasian siskin (Carduelis spinus) Norfolk UK February

Mark Hamblin / Siskin (Carduelis spinus) male in flight preparing to land, Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) male in flight, Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) and Redpoll (Carduelis flammea) fighting in mid-air. Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) male perched, backlit, Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) male displaying aggressively, Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) male perched on birch spring, Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) male calling, Scotland, UK, May.

Mark Hamblin / Siskin (Carduelis spinus) male drinking at garden pond , Scotland, UK. July.

Mark Hamblin / Siskin (Carduelis spinus) male drinking at garden pond , Scotland, UK. July.

Mark Hamblin / Siskin (Carduelis spinus) juvenile drinking at garden pond , Scotland, UK. July.

Mark Hamblin / RF - Siskin (Carduelis spinus) male in flight Scotland, UK. May. (This image may be licensed either as rights managed or royalty free.)

Mark Hamblin / RF - Siskin (Carduelis spinus) male perched on birch, UK Scotland, UK. May. (This image may be licensed either as rights managed or royalty free.)

Mark Hamblin / RF - Siskin (Carduelis spinus) male displaying aggressively Scotland, UK. May. (This image may be licensed either as rights managed or royalty free.)

Mark Hamblin / RF - Siskin (Carduelis spinus) male perched on birch sprig in spring. Scotland, UK, May. (This image may be licensed either as rights managed or royalty free.)

Bernard Castelein / Siskin (Carduelis spinus) male, Brasschaat, Belgium March

Loic Poidevin / Eurasia siskin (Carduelis spinus) male female pair, Loire Atlantique, France, March

Brian Bevan / Male Common redpoll (Carduelis flammea) squabbling with a male Eurasian siskin (Carduelis spinus), Carmarthenshire, Wales, UK, March.