Boom in migrating moth sightings put down to hot weather, strong winds and food scarcity in Europe He had just sat down to dinner in the garden when a speedy visitor whizzed by – a “grey lump with orange wings”, recalled Luke Burstow, from Sussex.

Boom in migrating moth sightings put down to hot weather, strong winds and food scarcity in Europe He had just sat down to dinner in the garden when a speedy visitor whizzed by – a “grey lump with orange wings”, recalled Luke Burstow, from Sussex.