Someone went into a large roost of blackbirds in Beebe, Arkansas, as the clock struck midnight Saturday and set off fireworks, contributing to the deaths of scores of blackbirds, a state wildlife spokeswoman said.

Last New Year’s Eve, roughly 5,000 birds were found dead in a square-mile area in Beebe, a central Arkansas town about 35 miles northeast of Little Rock through which birds migrate and that is home to a large roost for the birds.

Fireworks last year caused otherwise healthy birds to become disoriented and “fly all over the place” into stationary objects, such as trees and buildings, Arkansas Game and Fish Commission spokeswoman Ginny Porter said.