Pics: Dead birds fall from sky in US, Sweden

A dead bird lies on Skylark Street in Beebe, Arkansas on Saturday, January 1, 2011. The Arkansas Game and Fish Commission said more than 1,000 dead black birds fell from the sky in Beebe.

A dead starling, left, and red-winged blackbird lay along the side of the Morganza Highway in Pointe Coupee Parish, January 3, 2011, about 300 miles south of Beebe, Arkansas, where more than 3,000 blackbirds fell from the sky three days earlier. Louisiana state biologists are sending some of the birds found at Labarre to laboratories in Georgia and Wisconsin for testing.

A dead Starling lies along the side of the Morganza Highway in Pointe Coupee Parish, January 3, 2011, about 300 miles south of Beebe, Arkansas, where more than 3,000 blackbirds fell from the sky three days earlier. Louisiana state biologists are sending some of the birds found at Labarre to laboratories in Georgia and Wisconsin for testing.

Hundreds of dead birds lay along the side of the Morganza Highway in Pointe Coupee Parish, Louisiana, Monday, January 3, 2011, about 300 miles south of Beebe, Arkansas, where more than 3,000 blackbirds fell from the sky three days earlier. Louisiana state biologists are sending some of the birds found at Labarre to laboratories in Georgia and Wisconsin for testing.

Assistant State Veterinarian Dr. Brandon Doss examines dead red-winged blackbirds at the Arkansas Livestock and Poultry Commission Diagnostic Laboratory in Little Rock, Arkansas, January 3, 2011. Scientists are investigating whether bad weather, fireworks or poison might have forced more than 3,000 red-winged blackbirds out of the sky, or if a disoriented bird simply led the flock into the ground.

Cindy Bryant and her husband Stephen examine one of the thousands of dead birds that fell from the sky between 11 pm New Years Eve and early New Years Day near their home in Beebe, Arkansas.

Dead birds sit in a bucket after being collected by workers with United States Environmental Services LLC in Beebe, Arkansas Sunday, Jan 2, 2011. Wildlife officials are trying to determine what caused more than 1,000 blackbirds to die and fall from the sky over the Arkansas town.

A worker with US Environmental Services, a private contractor, picks up a dead bird in Beebe, Arkansas on Saturday, Jan 1, 2011 as more can be seen on the street behind him. The Arkansas Game and Fish Commission said Saturday more than 1,000 dead black birds fell from the sky in Beebe. The agency said its enforcement officers began receiving reports about the dead birds about 11:30 pm Friday.

Dead birds lie on the ground after being thrown off the roof of a home by a worker with United States Environmental Services LLC in Beebe, Ark Sunday, January 2, 2011. Wildlife officials are trying to determine what caused more than 1,000 blackbirds to die and fall from the sky over the Arkansas town.

A worker with United States Environmental Services LLC tosses a dead bird off of a home in Beebe, Arkansas Sunday, January 2, 2011. Wildlife officials are trying to determine what caused more than 1,000 blackbirds to die and fall from the sky over the Arkansas town.

Rescue chief Christer Olofsson holds a dead bird in Falkoping Sweden January 5, 2010. Officials say about 50 birds have been found dead on a street in Falkoping Sweden. Veterinarian Robert ter Horst says the cause of jackdaws' deaths was unclear.