A British birdwatching exhibition, Birdfair, has cancelled its sponsorship agreement with binocular manufacturer Bushnell over the manufacturer’s strong support of the American pro-gun lobby, the National Rifle Association (NRA)

Bushnell is owned by Vista Outdoor, the American manufacturer of ammunition and assault rifles and sponsors the NRA as part of its marketing to gun owners.

The cancellation follows a campaign by Ethical Consumer magazine to get organisations to better consider their own ethical values before accepting money from sources with very different ones.