AP The maximum altitude for whirly-birds flying in the controlled airspace ... Officials will continue their search in the Potomac River tomorrow, according to the NTSB statement.

The Potomac River winds through America’s capital ... It fills in with silt and sand and soil. And then between birds and wind, the seeds get planted. And then once the seeds get planted ...

“You know, something as simple as a flock of birds in front of you ... Dean Naujoks, the Potomac Riverkeeper, knows the river and how it moves. He said he thinks some debris could drift ...