Marie Read / Baltimore oriole (Icterus galbula) male perched in pear (Pyrus sp.) blossom, eastern redbud in background, New York, USA. May.

Marie Read / Baltimore oriole (Icterus galbula) male singing in spring, perched on Pear blossom (Pyrus sp.) flowers, New York, USA May.

Ernie Janes / Conference Pear tree (Pyrus communis) growing against wall in garden, UK

Marie Read / Northern Mockingbird (Mimus polyglottos) perched in Bradford Pear tree in autumn, Ithaca, new York, USA

Shin Yoshino / Asian Pear (Pyrus pyrifolia) tree with bare branches in winter, Japan. Sequence 4 of 4

Nigel Cattlin / Pear leaf blister mite (Eriophyes pyri) damage to Pear (Pyrus sp) leaves. Berkshire, England, UK. May.

Nigel Cattlin / Pear leaf blister mite (Eriophyes pyri) damage to Pear (Pyrus sp) leaves and young fruit. Berkshire, England, UK. May.

Nigel Cattlin / Pear leaf blister mite (Eriophyes pyri) damage to young Pear (Pyrus sp) fruit. Berkshire, England, UK. June.

Nigel Cattlin / Pear leaf blister mite (Eriophyes pyri) damage to Pear (Pyrus sp) leaves. Berkshire, England, UK. June.

Nigel Cattlin / Doyenne du Comice pear (Pyrus communis) fruit with deformity and internal hard growth caused by Pear stony pit virus, cross section. Berkshire, England, UK. October.

Nigel Cattlin / Doyenne du Comice pear (Pyrus communis) fruit with deformity and internal hard growth caused by Pear stony pit virus, cross section. Berkshire, England, UK. October.

Nigel Cattlin / Doyenne du Comice pear (Pyrus communis) fruit with deformity caused by Pear stony pit virus. Berkshire, England, UK.