WMAR ABC World News Now August 1, 2012
$600 million in damage every year. that's why at denver international airport -- kendra cross is one of four full time employees using explea sieve charges to scare birds away from busy run ways. >> these are what's called a banger. it produces a large, loud burst or bang to kind of get their wings flapping faster and get out of the airfield faster and out of harm's way. >> reporter: officials believe the plane was hit by a large species bird, not sure what type. they collected tissue samples they will send to the smithsonian in washington, d.c. where experts should be able to make a...