An Amber alert has been issued for Orson, Remy and Avery Rousseau. The children, pictured above, are aged 10, 7, and 8 respectively. Santa Ramona Sheriff's Department believes the children were abducted by Max Mactavish, the children's grandfather. Max Mactavish, shown below, is a 55 year old male Caucasian, blue eyes, gray hair, beard and mustache. If you have information about the abduction or you see Mactavish or the children call the Santa Ramona Sheriff's Department immediately. Stay tuned to the Chronicle for more information about this evolving story.