Dave Bevan / Male Green woodpecker (Picus viridis) feeding young at nest hole, shot looking up trunk, Bedfordshire, England, UK, June.

Dave Bevan / Juvenile Green woodpecker (Picus viridis) leaving nest hole, shot looking up trunk, Bedfordshire, England, UK, June.

Dave Bevan / Male Green woodpecker (Picus viridis) feeding young at nest hole, shot looking up trunk, Bedfordshire, England, UK, June.

Markus Varesvuo / Black woodpecker (Dryocopus martius) male perched on tree trunk, trees covered in hoar frost. Kuusamo, Northern Ostrobothnia, Finland. February. Commended in the Birds in the Environment Category of t...

Kerstin Hinze / Male Black woodpecker (Dryocopus martius) drilling a hole in a tree, hunting for insects, Bavarian Forest National Park, Bavaria, Germany, February.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) descending down a wooden electricity pole, Carmarthenshire, Wales, UK, June.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) flying to a nest hole in an electricty pole and feeding chick, Carmarthenshire, Wales, UK, June.

Sven Zacek / Black woodpecker (Dryocopus martius) feeding chicks at nest in tree trunk viewed from above, Valga County, Estonia. May. Highly commended in the GDT European Wildlife Photographer of the Year Awards...

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) entering nest hole and leaving with a faecal sac, Carmarthenshire, Wales, UK, June.

Gabriel Rojo / Green-barred woodpecker (Colaptes melanochloros) female on snag, La Pampa, Argentina

Erlend Haarberg / Three-toed woodpecker (Picoides tridactylus) on tree trunk, Sarek National Park, Laponia World Heritage Site, Lapland, Sweden, September.

Ben Cranke / White Woodpecker (Melanerpes candidus) perched on a tree branch, Piaui, Brazil. August.