Pal Hermansen / Meadow with Bluebells (Campanula rotundifolia) Quassiarsuk / Brattahlid, southern Greenland. July. Small repro only.

Pal Hermansen / Meadow with Bluebells (Campanula rotundifolia) Quassiarsuk / Brattahlid, southern Greenland. July. Small repro only.

Pal Hermansen / Meadow with Bluebells (Campanula rotundifolia) Quassiarsuk / Brattahlid, southern Greenland. July. Small repro only.

Wild Wonders of Europe / Novák / Large flock of Bramblings (Fringilla montifringilla) perched in tree with Mistletoe, Ldersdorf, Austria, February 2009

Rolf Nussbaumer / Bohemian waxwing {Bombycilla garrulus} feeds on Mistletoe berry, Switzerland.

Colin Varndell / Mistletoe (VIscum album) berries. Somerset, UK, November.

Colin Varndell / Mistletoe (Viscum album) growing on apple tree. Somerset, UK November

Fabrice Cahez / Mistle thrush (Turdus viscivorus) perched next to Mistletoe (Viscum album) in winter, Vosges, France, January

Rolf Nussbaumer / Northern mockingbird (Mimus polyglottos) adult eating ice covered Christmas mistletoe berries (Phoradendron tomentosum) Dinero, Lake Corpus Christi, South Texas, USA.

Rolf Nussbaumer / Green jay (Cyanocorax yncas) adult perched on ice covered Christmas mistletoe (Phoradendron tomentosum) Dinero, Lake Corpus Christi, South Texas, USA.

Gary K. Smith / Mistletoe (Viscum album) seed deposited by bird on apple tree, showing embryo roots attached to bark. Norfolk, England, April.

Philippe Clement / Mistletoe (Viscum album) infestation on tree in spring. La Brenne, France, April.

Nick Upton / Mistletoe (Viscum album) male plant growing on an apple tree (Malus domesticus) in evening light, Brandenburg, Germany, April.

Philippe Clement / European Mistletoe (Viscum album) close-up of branch of male, Luxembourg

Mark Bowler / Mistletoe (Viscum album) twig with two berries

Roger Powell / Red-berried southern Mistletoe {Viscum coloratum} growing on host tree of Portuguese Oak (Quercus faginae) Sierra de Grazalema, Andalusia, Spain

Gary K. Smith / Mistletoe (Viscum album) with ripe white berries on old apple tree, Norfolk, England, UK, December

Gary K. Smith / Mistletoe (Viscum album) high on Common Lime tree (Tilia vulgaris), Norfolk, England, UK, October

Gary K. Smith / Mistletoe (Viscum album) high on Common Lime tree (Tilia vulgaris), Norfolk, England, UK, October

Christoph Becker / Mistletoe {Viscum album} Germany

Philippe Clement / Juniper mistletoe (Phoradendron juniperinum). Grand Canyon National Park, Arizona, USA

Philippe Clement / Mistletoe (Viscum album) in Poplar tree (Populus sp) tree. La Brenne, France

Philippe Clement / Mistletoe (Viscum album) in Poplar tree (Populus sp) La Brenne, France

Philippe Clement / Mistletoe (Viscum album) in Poplar trees (Populus sp) La Brenne, France 2007

Philippe Clement / Mistletoe (Viscum album) in Poplar trees (Populus sp) La Brenne, France

Philippe Clement / Mistletoe (Viscum album) in Poplar tree (Populus sp) La Brenne, France

Yuri Shibnev / Mistletoe berries {Viscum coloratum} Ussuriland, Primorskiy, Far East Russia

Yuri Shibnev / Mistletoe berries {Viscum coloratum} Ussuriland, Primorskiy, Far East Russia

Martin Gabriel / Mistletoe {Viscum album} in Birch tree {Betula pendula} Bavaria, Germany

Niall Benvie / Mistletoe berries {Viscum album} against Poplar bark Bialowieza NP, Poland

Konstantin Mikhailov / Red Mistletoe (Viscum sp) with berries, Ussuriland, SE Siberia, Russia

Albert Aanensen / Box mistletoe flowers {Amyema miquelli} New Zealand

Dave Watts / Mistletoe with berries {Viscum album} France

Michael & Patricia Fogden / Golden-browed Chlorophonia (Chlorophonia callophrys) male feeding on fruited mistletoe, cloud forest ecosystem, Costa Rica

Michael Quinton / Common Porcupine (Erethizon dorsatum) feeding on Mistletoe (Phoradendron serotinum) in winter, Island Park, Idaho

Tony Evans / Mistletoe with berries {Viscum album} UK

Tony Evans / Buttercups {Ranunculus acris} flowering in grass with Mistletoe in Apple tree, UK

WILLIAM OSBORN / Pheasant female feeding on mistletoe in tree {Phasianus colchicus} Glos, UK

Artur Tabor / Mistletoe {Viscum album} in White poplar {Populus alba} tree. Poland.

WILLIAM OSBORN / Mistle thrush {Turdus viscivorus} amongst Mistletoe in Apple tree. Gloucestshire, UK

WILLIAM OSBORN / Mistle thrush {Turdus viscivorus} amongst Mistletoe in Apple tree. UK

WILLIAM OSBORN / Mistle thrush droppings with Mistletoe seeds in Apple tree. Gloucestshire, UK {Turdus

WILLIAM OSBORN / Mistle thrush {Turdus viscivorus} amongst Mistletoe in Apple tree. UK

Jose B. Ruiz / Mistletoe {Viscum album} on tree. Segovia, Spain.

Jose B. Ruiz / Mistletoe {Viscum album} on tree Segovia, Spain.

Jose B. Ruiz / Mistletoe with berries on tree trunk {Viscum album} Segovia, Spain.

Jose B. Ruiz / Mistletoe with berries on tree, Spain.

DAVID TIPLING / Mistletoe with berries {Viscum album} Glos, UK.

DAVID TIPLING / Mistletoe {Viscum album} with berries, Glos, UK.

Jim Hallett / Mistle thrush {Turdus viscivorus} feeding chicks at nest UK

Kim Taylor / Mistletoe (Viscum album) with berries in winter. Surrey, UK

Nature Production / Japanese Waxwing {Bombycilla japonica} note excrement containing Mistletoe seeds {Viscum album ssp. Coloratum} Aichi, Japan, February

Adrian Davies / Mistletoe in trees {Viscum album} England, UK