John Ostrom of the Metropolitan Airports Commission out of Minneapolis chairs the Bird Strikes Committee, which advises the aviation industry on wildlife management to eliminate possible hazards.
Ostrom told ABC News today --"There's a variety of ways a bird can take down a plane," "There have been instances where birds the size of robins bring a plane down, all the way up to Canada geese."
Ostrom says "Birds can fly into plane engines, shutting them down, or cause pilots to lose control of the plane by penetrating the windshield. And there's not much pilots can do to avoid bird strikes, which happen "every day."
About 90% of all bird strikes in the U.S. are by species federally protected under the Migratory Bird Treaty Act.