Police in Aurora are distributing hundreds of fliers to warn residents to watch for coyotes after a man was recently bitten while in his back yard.
Aurora spokesman Dan Ferrelli told NBC Chicago the 47-year-old man called 911 after he was bitten on the arm April 20.
"He saw two coyotes on the side of the house, and one just lunged at him," said Ferrelli, who noted the number of phone calls has increased as the animals are squeezed out of their natural habitat.
The coyote ran off and the man wasn't seriously injured, but city officials increased communication Monday to residents.
"If you see or are approached by a coyote, you should exhibit caution," a flyer titled "Please Don't Feed the Coyotes!" reads. "Do not run away. Instead, yell, wave your arms, and/or throw an object at the animal. It is also a good idea to carry a walking stick."
Ferrelli said coyote attacks on humans are extremely rare. Still residents are on alert.
"I think I saw the same animal eight months ago," said Steve Langston, taking a walk with his grandson, Jamal. "I saw one crossing the street not too long ago as well."
Langston said he isn't afraid for Jamal's safety but is always keeping a close eye on the 5-year-old.