In a large bowl, sift together the flour, baking powder, salt, and sugar.
Make a well in the center and pour in the milk, egg, and melted butter; mix until smooth.
Heat a lightly oiled griddle or frying pan over medium-high heat. Pour or scoop the batter onto the griddle, using approximately ¼ cup for each pancake. Brown on both sides and serve hot.
Sprinkle blueberries onto the pancakes while cooking.