Saturday at 9 AM, birders from the Chicago Ornithological Society lead a walk at Garfield Park (100 N. Central Park) in search of nesting birds, rain or shine. Bring along a pair of binoculars. Participation is limited; register at 312-747-4011.

Then at 1 PM at Sulzer Regional Library (4455 N. Lincoln, 312-744-7616) the society’s Michael Peters presents “An Introduction to Bird-Watching.”