I am talking about this :
Wings of Heaven (Su): At 9th level, you can sprout feathery wings and fly for a number of minutes per day equal to your sorcerer level, with a speed of 60 feet and good maneuverability. This duration does not need to be consecutive, but it must be used in 1 minute increments.
The celestial bloodline allows one to sprout wings, but doesn't specify if it takes a standard, swift, move, or free action. Does anyone have the answer?