Apparently it was the radar screens at the air traffic control center in Weldon Spring that showed several thousand blips and required Kansas City controllers to guide air traffic through St. Louis air space. Today’s STLtoday.com reports that controllers knew the blips were not aircraft. Whew!

KWMU just reported that Lambert Field had to rely on Kansas City air traffic controllers to guide aircraft in the St. Louis area today because radar interpreted 3,000 migrating birds (probably geese) as 3,000 planes. It would make me a bit uneasy to look at a screen that indicated 3,000 planes were coming in!