Tony Wu / Marsh tit (Poecile palustris hensoni) feeding on an icicle formed from the sap of a painted maple tree (Acer pictum) in winter. Hokkaido, Japan.

Fabrice Cahez / Marsh tit (Poecile palustris) with insect prey, France, May.

Nick Upton / Marsh tit (Parus palustris) pair feeding on peanuts in a bird feeder near Forsythia flowers in the background, Wiltshire, UK, April.

Tony Wu / Marsh tit (Poecile palustris hensoni) perched on branch. Hokkaido, Japan. March.

Tony Wu / Marsh tit (Poecile palustris hensoni) perched on branch. Hokkaido, Japan. March.

Aflo / Marsh tit (Poecile palustris) perched on Staff vine (Celastrus) with berries. Kushiro Town, Hokkaido, Japan.

Loic Poidevin / Marsh tit (Poecile palustris) on a branch, Leon, Spain, February.

Bruno D'Amicis / Marsh tit (Parus palustris) searching for food on centuries-old Beech (Fagus sylvatica) tree bark in Coppo del Principe old-growth beech forest during a winter snowfall. Abruzzo, Lazio and Molise Nati...

Fabrice Cahez / Marsh tit (Poecile palustris) Vosges, France, August.

Dave Bevan / Marsh tit (Poecile palustris) feeding from a bird feeder, Carmarthenshire, Wales, UK, June.

Fabrice Cahez / Marsh tit (Poecile palustris) perched, Vosges, France, January.

Fabrice Cahez / Marsh tit (Poecile palustris) perched, Vosges, France, January.

Loic Poidevin / Marsh tit (Poecile palustris) feeding on seed heads, Loire-Atlantique, France, January

Dave Bevan / Marsh tit (Poecile palustris) feeding from a bird feeder, Carmarthenshire, Wales, UK, November.

Dave Bevan / Marsh tit (Poecile palustris) feeding at a bird table before flying off, Carmarthenshire, Wales, UK, November.

Staffan Widstrand / Marsh tit (Poecile palustris) perched in apple blossom, Musteika Village, Lithuania, May.

Staffan Widstrand / Marsh tit (Poecile palustris) perched in apple blossom with prey, Musteika Village, Lithuania, May.

Staffan Widstrand / Marsh tit (Poecile palustris) perched in apple blossom, Musteika Village, Lithuania, May.

MYN / Paul van Hoof / Marsh tit (Poecile palustris) adult in flight, The Netherlands, November. meetyourneighbours.net project

Aflo / Marsh tit (Poecile palustris) on tree Willow (Salix gracilstyla) Urausu town, Hokkaido, Japan. April.

Mike Read / Marsh tit (Parus palustris) perched on snowy branch, New Forest National Park, Hampshire, England, UK, January.

Steve Knell / Marsh Tit (Parus palustris palustris) perched in on oak in woodland, Hungary. May.

Steve Knell / Marsh Tit (Parus palustris palustris) perched in deciduous woodland, Hungary. May.

Duncan Usher / Marsh Tit (Parus palustris) and Great Tit (Parus major) fighting over Sunflower Seeds, Europe

Duncan Usher / Marsh Tit (Parus palustris) adult on sunflower, foraging for seeds, Europe

Duncan Usher / Marsh Tit (Parus palustris) adult foraging for sunflower seeds, Europe

Duncan Usher / Marsh Tit (Parus palustris) adult foraging for sunflower seeds, Europe

Duncan Usher / Marsh Tit (Parus palustris) adult eating sunflower seed, Europe

Duncan Usher / Marsh Tit (Parus palustris) foraging for sunflower seeds, Europe

Duncan Usher / Marsh Tit (Parus palustris) and Great Tit (Parus major) foraging for Sunflower Seeds, Europe

Duncan Usher / European Greenfinch (Chloris chloris) group and Marsh Tit (Parus palustris) foraging for sunflower seeds, Europe

Duncan Usher / European Greenfinch (Chloris chloris) Marsh Tit (Parus palustris) and Great Tit (Parus major) foraging for sunflower seeds, Europe

Duncan Usher / European Greenfinch (Chloris chloris) and Great Tit (Parus major) eating Sunflower Seeds, Europe