Wild Things: August brings rare butterfly sightings

Butterfly buffs received an August boost with brown hairstreaks emerging from seclusion to provide decent views and pose for photographs. Brown hairstreaks are red-listed species of high conservation concern in the UK and extremely difficult to survey accurately. This is mainly because they lurk around the tops of "master trees" like ash so fleeting and distant views are often obtained only with back-breaking, eye-straining patience. Males rarely venture down towards ground level and the best chance of seeing brown hairstreak is to spot females descending for egg-laying missions on blackthorn - but not before 11am on sunny days in August and September.