CHICAGO -- Experts are telling Chicago residents to beware of the birds.
The fiercely territorial behavior of red-winged blackbirds is being blamed on several recent dive-bomb attacks. The birds peck at unsuspecting bicyclists and pedestrians and swipe their hair.
Field Museum ornithologist Doug Stotz said the birds favor parks and vacant lots near ponds and Lake Michigan.
Relief may come in late July, after their nesting season ends.