Whisk together flour, sugar, baking soda and salt in medium-size bowl. Stir together sour cream, cottage cheese, eggs and vanilla in large bowl. Add flour mixture; stir until just combined. Gently stir in blueberries.
Heat oven to 200°F. Heat a griddle over medium heat. Butter griddle lightly.
Spoon level 1/4 cup batter onto griddle for each pancake; spread to diameter of 4 inches. Cook until light brown on bottom and bubbles begin to form on top, 3 to 4 minutes. Turn over with wide spatula. Cook until set in center, about 2 minutes. Keep warm in oven on baking sheet until ready to serve. Serve with syrup and garnish with berries and citrus wedges, if desired.