Andy Trowbridge / Male Goldfinch (Carduelis carduelis) perched on flowering European bird cherry (Prunus padus). Southern Norway. May.

Peter Lewis / Common Cuckoo (Cuculus canorus) perched on Cherry tree blossom Surrey, England, UK. April.

Nigel Cattlin / Plantation of young trees including Wild cherry (Prunus avium) and Ash (Fraxinus excelsior) with tree guards, trees to be used in woodland. Berkshire, England, UK. April.

Andy Trowbridge / Greenfinch (Carduelis chloris) perched on flowering European bird cherry (Prunus padus). Back-lit. Southern Norway. May.

Alex Hyde / Bird Cherry (Prunus padus) blossom. Peak District National Park, Derbyshire, UK. April.

Chris Mattison / Flowering bird cherry (Prunus padus), Cumbria, UK. April.

Chris Mattison / Flowering bird cherry (Prunus padus), Cumbria, UK. April.

Colin Varndell / Bird cherry (Prunus padus) flower, Dorset, UK. May

Thomas Marent / Spindle Ermine (Yponomeuta cagnagella) caterpillars in communal web which covers European Spindle (Euonymus europaeus) tree, Switzerland

Thomas Marent / European Spindle (Euonymus europaeus) tree covered by communal web of Spindle Ermine (Yponomeuta cagnagella) caterpillars, Switzerland

Philippe Clement / European bird cherry tree fruit and leaves {Prunus padus} France

Konrad Wothe / Bird cherry (Prunus padus) fruits on tree in rain, Bavaria, Germany. June.