New York State Police say a pair of girls struck a man with a fishing pole when he allegedly exposed himself at a nature preserve over the weekend. Bryan Rivera Rosario, 29, was arrested Sunday and charged with endangering the welfare of a child, public lewdness in the first degree and exposure of a person. According to police, troopers responded to the Tillman Road Wildlife Management Reserve in Clarence at around 4:13 p.m. on Sunday after a report of a man exposing himself. Investigation revealed that two juvenile girls allegedly saw Rivera Rosario “openly masturbating.” “Despite their attem…