State Environmental Conservation Police are investigating the illegal shooting of a red-tailed hawk in Oxford.  The bird was observed to be impaled with an arrow in the vicinity of Thorson  Road and North Mark Drive in late December.  The hawk was successfully captured and is being treated by a licensed wildlife rehabilitator, who also found embedded BBs and an air rifle pellet.  Anyone with information about this case is asked to contact the Environmental Conservation Police 24-hour tip line at 860-424-3333.  Under the federal Migratory Bird Treaty Act, it is illegal to take, injure, or harass any bird of prey. Property owners may not kill birds of prey in defense of livestock without proper permission.