2 tear drop shaped craft appeared to rise from a farm field in boynton beach, west of my house. they reached an approximate altitude of 200 feet and proceeded toward my house (east) and then headed south. the turns were smooth and not 90 deg turns. very gradual. the two craft were approximately 20 feet from each other the entire time. the flight path was smooth and against the wind, which eliminated any balloon theory. speed was constant and appeared to be powered, as it did not waiver and remained constant. there was no audible sound present. the craft stayed at the 200 ft level and eventually traveled out of our view. during the flight we noticed the surface appeared to be metallic in nature as it was reflecting the sun.