FILLED OUT WITH WITNESS ON THE PHONE AT MUFON H.Q. BY FIELD INVESTIGATOR L. FLECHTNER ON APRIL 27TH, 2016. I'M SORRY I MISSED THE TIME OF EVENT. L.F.-----------------------------------------------------------------------I LOOKED UP IN THE SKY TO SEE BIRDS ON THE POWER LINES AND SAW THREE CLUSTERS OF BLACK CIRCLES, THE THREE TURNED INTO FIVE AND WERE MOVING IN A DIRECT LINE PATH ACROSS THE SKY IN A NORTH TO SOUTH DIRECTION. I COULD SEE THE SKY IN BETWEEN THE CIRCLES, YET THEY SEEMED CONNECTED. THEY CHANGED FROM A CIRCLE PATTERN TO AN ARC LIKE PATTERN, ALMOST LIKE SOME ONE THREW A SWITCH, AND INSTANTLY THEY WERE CHANGED. I DID NOT SEE THEM MOVE. THEN THE PATTERN CHANGED INTO A VEE SHAPE, OR OPEN TRIANGLE, THEN A WING SHAPE, AND THEN BACK TO THE CIRCLE. IT NEVER CHANGED DIRECTION, KEPT A STRAIGHT LINE PATH WHILE IT WAS CHANGING, AND MOVED CONSISTENTLY, NEVER SPEEDING UP OR SLOWING DOWN. I COULD SEE NO LIGHTS OR HEAR ANY SOUND. I ESTIMATE THE DISTANCE FROM THE GROUND AT 15,000 FEET IN THE SKY.THE WIND WAS FROM THE SOUTHWEST, THE TEMPERATURE WAS 85 DEGREES, HUMIDITY WAS AT 85%. A STORM HAD JUST PASSED AND THE OBJECT WAS FLYING INTO THE STORM.THERE IS A AIRPORT NEAR BY, BUT I ONLY SEE THE AIRPLANES TAKE OFF AND LAND.I AM VERY FAMILIAR WITH AIRCRAFT, AND THIS WAS DEFINITELY NOT REGULAR AIRCRAFT.