Loic Poidevin / Blue Tit (Parus caeruleus) perched on mossy branch. Breton Marsh, French Atlantic Coast, November.

Hans Christoph Kappel / Marsh Tit in flight, Germany

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.

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.

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.

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

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

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.

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

Markus Varesvuo / Marsh Tit (Poecile palustris)vocalising, Estonia, Europe

Philippe Clement / Two male Bearded reedling (Panurus biarmicus) eating seeds from the spike of a common bulrush (Typha latifolia) in a reedbed, Belgium, January. Digital composite.

Philippe Clement / Two male Bearded reedling (Panurus biarmicus) eating seeds from the spike of a common bulrush (Typha latifolia) in a reedbed, Belgium, January. Digital composite.

Philippe Clement / Two male Bearded reedling (Panurus biarmicus) eating seeds from the spike of a common bulrush (Typha latifolia) in a reedbed, Belgium, January. Digital composite.

Philippe Clement / Male Bearded reedling (Panurus biarmicus) eating seeds from the spike of a common bulrush (Typha latifolia) in a reedbed, Belgium, January.

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

Rosl Roessner / Marsh Tit (Poecile palustris), Rhineland-Palatinate, Germany

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

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

Nick Upton / Marsh tit (Poecile palustris) with beakful of green caterpillars, Wiltshire hedgerow, UK, June.

Nick Upton / Marsh tit (Poecile palustris) with beakful of green caterpillars, Wiltshire hedgerow, UK, June.

Nick Upton / Marsh tit (Poecile palustris) with beakful of green caterpillars, Wiltshire hedgerow, UK, June.

Fabrice Cahez / Marsh Tit (Poecile palustris) on birch tree trunk Vosges, France, January

Loic Poidevin / Long Tailed Tit (Aegithalos caudatus) perched among twigs. The Vendeen Marsh, French Atlantic Coast, February.

Loic Poidevin / Blue Tit (Parus caeruleus) with puffed-up feathers. The Vendeen Marsh, French Atlantic Coast, January.

Loic Poidevin / Long Tailed Tit (Aegithalos caudatus) perched among blossom. The Vendeen Marsh, French Atlantic Coast, March.

Loic Poidevin / Blue Tit (Parus caeruleus) perched on a thistle. Breton Marsh, French Atlantic Coast, February.

Ernie Janes / Marsh Tit (Poecile palustris) perched on thistle down, Buckinghamshire, UK, August

Alan Williams / Marsh tit (Poecile palustris) perched in woodland, North Wales, UK, April

Michel Poinsignon / Marsh tit (Poecile palustris) perched on stump in snow, Lorraine, France, January

Stephen Dalton / Marsh tit (Poecile palustris) bringing caterpillar prey to nest in tree trunk, UK

Stephen Dalton / Marsh tit (Poecile palustris) in flight, about to land on branch covered with bracket fungi, UK, controlled conditions

Laurie Campbell / Marsh Tit (Poecile palustris) in deciduous woodland, Berwickshire, Scotland, November

Warwick Sloss / Marsh tit (Poecile / Poecile palustris) on twig, autumn, Somerset, UK

Warwick Sloss / Marsh tit (Poecile / Poecile palustris) perched on twig, autumn, Somerset, UK

David Kjaer / Marsh tit (Poecile palustris) perched on stump. Worcestershire, England.

David Kjaer / Marsh tit (Poecile palustris) perched in tree. Worcestershire, England.

Dave Bevan / Marsh tit (Poecile palustris) feeding on nut feeder amongst Cotoneaster berries, UK

Andy Sands / Marsh tit (Poecile palustris) perched on log, Sussex, England

Dave Bevan / Marsh tit (Poecile palustris) with insect prey, Wales, UK

Roger Powell / Marsh tit {Poecile palustris} perching on Beech branch, Northumberland, UK

Roger Powell / Marsh Tit {Poecile palustris} Northumberland, UK

Mike Wilkes / Marsh tit {Poecile palustris} perching on gate hinge, Warwickshire, UK

Roger Powell / Marsh Tit (Poecile palustris) territorial display, Northumberland, UK

Roger Powell / Marsh Tit (Poecile palustris) perched on branch, Northumberland, UK

Ross Hoddinott / Marsh tit {Poecile palustris} singing on Blackthorn blossom Cornwall, UK

WILLIAM OSBORN / Marsh tit taking food to chick (Poecile palustris) Wilthire, England

Dietmar Nill / Marsh tit {Poecile palustris} perching in bush, Germany.

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

Dave Watts / Marsh tit {Poecile palustris} amongst Japonica flowers Pyrenees, France

Dave Watts / Marsh tit {Poecile palustris} amongst Willow catkins {Salix sp} Pyrenees, France

Dave Watts / Marsh tit {Poecile palustris} amongst blossom, Pyrenees, France

Dave Watts / Marsh tit {Poecile palustris} Pyrenees, France

WILLIAM OSBORN / Marsh tit {Poecile palustris} UK

Mike Read / Marsh tit {Poecile palustris} UK

WILLIAM OSBORN / Marsh tit with caterpillar food for nestlings (Poecile palustris)

David Kjaer / Marsh tit perched on Spruce tree {Poecile palustris} Finland

TJ Rich / Marsh tit on lichen covered branch {Poecile palustris} Wiltshire UK

Rosl Roessner/ BIA / Marsh Tit (Poecile palustris), Rhineland-Palatinate, Germany

Mike Read / Marsh tit {Poecile palustris} perched, New Forest National Park Hampshire, UK, January

Mike Read / Marsh tit {Poecile palustris} perched, New Forest National Park Hampshire, UK, January

Peter Lewis / Marsh Tit (Poecile palustris) perched on wooden post, Hampshire, England.

Peter Lewis / Marsh Tit (Poecile palustris) perched on wooden post in Hampshire, England.

Peter Lewis / Marsh Tit (Poecile palustris) perched on thorny branch, Hampshire, England.

Peter Lewis / Marsh Tit (Poecile palustris) perched on a thorny branch in Hampshire, England.

Roger Powell / Marsh tit {Poecile palustris} Northumberland, UK

Mateusz Piesiak / Marsh tit (Poecile palustris) perched on branch, Poland. February.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on metal garden sculpture, Bishopswood, Somerset, UK. January. Cropped.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on Flowering currant (Ribes sanguineum) stem, Bishopswood, Somerset, UK. April. Cropped.

Oliver Hellowell / Marsh tit (Poecile palustris) perched on rotten log, Bishopswood, Somerset, UK. September. Cropped.

Ingo Arndt / Marsh Tit (Poecile palustris), Bergwinkel, Hessen, Germany

Ingo Arndt / Marsh tit (Parus palustris) perched on a lichen covered branch, Hessen, Germany. November.

David Tipling / Marsh tit (Poecile palustris) feeding chicks at nest hole in woodland, North Norfolk, UK. June.

Michel Poinsignon / Marsh tit (Parus palustris) perched on branch, Lorraine, France, March

Oscar Dewhurst / Marsh tit (Poecile palustris) perched on tree branch. Suffolk, England, UK. April

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

Tony Wu / Marsh tit (Poecile palustris hensoni) feeding on icicle formed from sap of Painted maple tree (Acer pictum). Hokkaido, Japan. February.

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