2821 Ridge Rd
Highland Park, IL 60035
USA
Peregrine Falcons were added to both the federal and state endangered species lists in the 1970s because of eggshell thinning caused by DDT exposure, but the bird has made a remarkable comeback since DDT was banned in 1972. In Illinois, where not a single peregrine chick was born from 1951 to 1998, there are now more than 20 breeding pairs including many in the Chicago metropolitan area – thanks in large part to reintroduction and monitoring efforts led by the Chicago Peregrine Program. The Field Museum’s Mary Hennen, who has headed the program since 1990, will join us to discuss the decline of the species, the museum’s role in identifying the cause, how the population has been restored, and how the birds are now banded, monitored and studied to help ensure their ongoing survival.