Chicago has an estimated 4000 coyotes living in the urban area. I would occasionally see them in parks and graveyards when I was out walking at dawn, but otherwise they are almost invisible. Rodents, including rats, make up about 75% of a coyote's diet and a single coyote can eat about 1800 per year. They are a welcome predator in the city as they keep a very low profile and keep to themselves, except for the rare instance where they make the news, like when one visited a Quiznos and took a nap in the beverage cooler.