Scores of dead birds have been sent off for scientific analysis to determine the cause of death.US scientists believe fireworks may have caused thousands of birds to fall from the sky over an Arkansas town on New Year's Eve.Karen Rowe, of the Arkansas Game and Fish Commission, said the red-winged blackbirds probably flew low to avoid explosions and collided with objects.However, she stopped short of declaring the mystery solved, saying further tests on the dead birds are planned.Officials say more than 3,000 birds fell over the city of Beebe.
http://www.bbc.co.uk/news/world-us-canada-12105157
Note: 4 January 2011 Last updated at 01:57 GMT