Birkey was later recruited to compete at Warner Pacific College. While captaining the WPC team, Birkey set several school goal and assist records and was sixth in the nation in collegiate scoring and was named to several conference and region all star teams. In his senior year alone Birkey tallied 18 goals and 9 assists. Birkey was a top goal scorer and All-Star player for the Horse Brass Soccer Club where he played under British manager Clive Charles in the Oregon First Division and later with the championship Iguanas SC in the Over 30's Division.