OFFICIALS say about 50 birds have been found dead on a street in Sweden, days after fireworks were blamed for killing thousands of blackbirds in Arkansas. Veterinarian Robert ter Horst says the cause of jackdaws deaths was unclear but that fireworks were set off near the scene on Tuesday night. Mr Ter Horst says cold weather, difficulties finding food and possible shock from the fireworks could be responsible, leading to the stressed birds either dying from the stress or being run over by vehicles. tg