Numerous reports of dead or sick blue tits have been received by the Swedish Wildlife Agency (SVA) after the agency raised the alarm on Wednesday about the spread of the infection, which mainly affects blue tits but also other small birds.
The disease spreads easily at bird feeders, so the Swedish Veterinary Association (SVA) urges the public to temporarily stop feeding small birds for three weeks.
"The birds can do without supplementary feeding now that spring is here and they can find food in nature," says Karin Olofsson-Sannö, deputy state veterinarian and wildlife pathologist at SVA.
