Phil Savoie / Blackthorn (Prunus spinosa), flowers, Monmouthshire, Wales, UK, April

Phil Savoie / Orange tailed mining bee (Halictus rubicundus) feeding on Blackthorn (Prunus spinosa) Monmouthshire, Wales, UK. April.

Phil Savoie / Orange tailed mining bee (Halictus rubicundus) male feeding on Blackthorn (Prunus spinosa) Monmouthshire, Wales, UK. April.

Phil Savoie / Blackthorn (Prunus spinosa) blossom, Monmouthshire, Wales, UK. April.

Phil Savoie / Yellow legged mining bee (Andrena flavipes) feeding on Blackthorn (Prunus spinosa) Monmouthshire, Wales, UK. April.

TJ Rich / Small eggar (Eriogaster lanestris) caterpillar larval tent on Blackthorn (Prunus spinosa) bush. Martin Down National Nature Reserve, Hampshire, England, UK. June.

TJ Rich / Small eggar (Eriogaster lanestris) caterpillar, two basking on larval tent on Blackthorn (Prunus spinosa). Martin Down National Nature Reserve, Hampshire, England, UK. June.

Mike Read / Blackthorn (Prunus spinosa) flowers. Isle of Purbeck, Dorset, England, UK. April.

Oliver Hellowell / Blackthorn (Prunus spinosa) in flower against blue sky, England, UK, March.

Ernie Janes / Blackbird (Turdus merula) female feeding on sloe berries in blackthorn hedge, Norfolk, England, UK, November.

Ernie Janes / Blackbird (Turdus merula) female feeding on sloe berries in blackthorn hedge, Norfolk, England, UK, November.

Stephen Dalton / Spring at Rookery Pond with Blackthorn (Prunus spinosa) Sussex, England, UK. April.