Ernie Janes / Green bottle flies (Eudasyphora cyanella) feeding on cow dung, Norfolk, UK, August

Ernie Janes / Green bottle flies (Eudasyphora cyanella) feeding on cow dung, Norfolk, UK, August

Andy Sands / Hornet (Vespa crabro) feeding on rotting apple alongside Green-bottle fly. West Sussex, UK, October.

Rolf Nussbaumer / Green Bottle Fly, Lucilia / Phaenicia sericata} adult, Hill Country, Texas, USA