OMAHA, Neb. (AP) - Spectators have gathered to watch tens of thousands of birds swirl like black leaves in the sky to roost in a row of ash trees in Omaha.
Each evening in late summer, numerous purple martins and a lesser number of grackles and starlings swirl around the trees located along a street at the Nebraska Medical Center to eventually settle for the night. The Omaha World-Herald (http://bit.ly/1LeT74P ) reports that several dozens of people, including the Omaha Youth Birding Group, stood nearby to watch the swarm of birds on Saturday.
Tisha Johnson described the birds’ chatter like a rushing waterfall, calling the sound like "nothing else."
An Omaha birder who monitors the roost estimated that 20,000 to 30,000 martins were at the roost Saturday night.