Coyote
Canis latrans
Description About the size of a medium to large dog, with a long snout and bushy tail
Habitat Incredibly well adapted to urban and suburban settings, coyotes can often be spotted in cemeteries in Forest Park and along the Metra tracks that run to the Northwest Suburbs. Best time to see them is in the winter during daylight hours. They also show up in Calvary Cemetery (301 Chicago Ave, Evanston).
Notes At one point nearly exterminated by hunters and farmers protecting their livestock, the local coyote population has exploded since the 1980s. An Ohio State study from 2006 estimated there could be a couple thousand living in the Chicago area dining on everything from rabbits to rats.
The nests you are seeing are not in Rosemont, they are off of 90 in Busse Woods near Arlington Heights, and they are mostly Great Blue Herons along with a few other species.
Bats aren't rodents.
This Place is a Zoo -- Big Brown Bat...Did your writer really think that bats are rodents? They are mammals and are closer related to humans genetically than they are to mice. I could see if there was a ha ha in the little write-up after it says flying rodents, but looks like he/she was serious. I think if Larry Heaney, who is quoted in the article, ever sees this he'll be pretty ashamed and upset to be associated with such a misconception.
I have often noticed a rookery of nests close to Rosemount, IL. Does anyone know if these are eagles or a type of heron?