Coyotes have been spotted in Chicago and the Western Suburbs.
Witnesses say they saw two coyotes, traveling together between Washington and Jefferson Parks.
A woman in the suburbs says her dog was killed by coyotes last week.
The woman lives on the border of Aurora and Naperville.
She said coyotes took her dog from her yard last Friday morning.
She ran outside after hearing the dog cry, but by the time she got there it was too late.
The woman told her story to WGN-TV, as a warning to other pet owners.