A Bergen County man died Saturday after the pickup he was driving collided with a construction backhoe tractor in Paramus, authorities said. The victim, identified Monday only as a 78-year-old Englewood resident, was driving a Ford Ranger north about 5 a.m. in the left lane of Forest Avenue when he struck the backhoe, according to police. The collision caused the Englewood man’s vehicle to spin around. The driver of the backhoe, a 40-year-old Elmwood Park man, told police he was driving south in the left lane when he “swerved to avoid a deer running across the road,” Paramus Police Chief Kenne…