Poisoned pigeons began nose-diving into pavement and dying on downtown sidewalks, marring the city's annual festival. Authorities cleaned up more than 25 sick or dead birds that apparently had eaten poisoned corn from the roof of a nearby bank branch. "The death of these pigeons was more than an unfortunate accident," local CapitalOne Bank President Lacy McMillen said in Tuesday's online edition of Texarkana Gazette. "It was not the intention of the bank to harm any of these birds." McMillen said the bank hired an exterminator to handle its pigeon problem after a bird entered the bank and defecated on a customer.