How to talk to a coyote

Chicago police are asking for your help in tracking down an undocumented man they say is driving through the city on a motorcycle and has been spotted riding around the city in an ambulance.

Police are asking anyone who spots the man to call the 24-hour Crime Stoppers tip line at (800) 677-TIPS or (866) 373-TIps.

The unidentified man is described as a black man between the ages of 18 and 25 with black hair and brown eyes.

He is wearing a black and white striped shirt with a dark blue trim, black shorts and blue sneakers.

He was last seen wearing a gray sweater, a dark gray shirt with red trim, and black pants.

Anyone with information on his whereabouts is asked to call police at (773) 521-5100 or Crime Stokers tip line.

Follow Robyn Urback on Twitter: @robynurback