Preheat oven to 425º Line baking sheet with parchment paper.
In large bowl combine flour, oats, sugar, baking powder, salt and baking soda.
With pastry blender cut in butter until mixture resembles coarse crumbs.
In small bowl combine egg, apple juice, yogurt, orange juice and orange zest.
Add egg mixture, sourdough starter and chopped cranberries to flour mixture. Mix lightly.
Turn out dough onto a well floured surface. Knead 8 to 10 times. Pat dough into a 8 to 10 inch circle.
Cut into 8 wedges. Place on parchment lined baking sheet.
Bake for 12 to 15 minutes. Transfer to a wire rack.
Make Orange Glaze: Stir together confectioners' sugar and orange juice until desired consistency.
Drizzle scones with orange glaze