‘Overwhelming’: hundreds of migrating birds die after crashing into NYC glass towers

A volunteer with the New York City Audubon found nearly 300 carcasses littering the sidewalks below the World Trade Center

Hundreds of birds migrating through New York City this week died after crashing into the city's glass towers, a mass casualty event spotlighted by a New York City Audubon volunteer's tweets showing the World Trade Center littered with bird carcasses.

This week's avian death toll was particularly high, but bird strikes on Manhattan skyscrapers are a persistent problem that NYC Audubon has documented for years, said Kaitlyn Parkins, the group's associate director of conservation and science.