Some of the about 1,000 birds that hit McCormick Place in Chicago on Oct. 5, 2023. The building's windows have since been treated with a film that makes them visible to birds. Photo by Daryl Coldren, Field Museum
Celia Llopis-Jepsen Kansas News Service In 1978, David Willard was working at the Field Museum in Chicago when he found out that birds kept slamming…
