CHICAGO -- Peggy Stenger casually admits to having a freezer of dead birds.
The Cleveland native, who lives in Chicago's South Loop and works in the Loop, collects the creatures when she sees them on the ground, often dead or injured from midflight collisions with buildings in her neighborhood.
Stenger puts the dead birds in Ziploc bags and labels them with the date, time and location they were found, to later be dropped off at the Field Museum for further research and documentation. The live ones are carefully placed in brown paper bags and sent off to a rehabilitation center.