The Chicago Park District opened a bird hospital on the former Meigs Field in April. Last week, the hospital served more than 250 patients. Most injuries treated at the hospital involve birds crashing into buildings, and the number of injuries increases each year during the spring and fall migration periods. The central location is pivotal in saving birds which otherwise would have to be driven to suburban wildlife centers for rehabilitation. The survival rate for birds dropped off at the hospital is over 85 percent. Read more in the Chicago Tribune.