I'm no authority, but it looks like a cougar to me.
"Police shoot cougar near Chicago
April 14, 2008 at 06:06 PM
The wandering Chicago cougar will wander no longer.
The Chicago Tribune confirmed that police officers shot a 150-pound cougar Monday after 6 p.m. in the Roscoe Village neighborhood on the North Side. The big cat was shot near North Hamilton Avenue and West Roscoe Street, according to Belmont District police, who said the cougar tried to attack officers when they attempted to contain the animal. That apparently prompted the shooting, which included as many as 10 gunshots according to witnesses.
The Tribune reported that:
Police cornered the cougar in the back yard of Ben Greene, 39, who lives on the 3400 block of North Hoyne. Greene said he heard a volley of gunfire shortly before 6 p.m. as he was bathing his 10-month-old son. His wife, Kate, ran upstairs screaming with their 3-year-old son, and they all took cover in a back room.
“At first I’m thinking there’s a gun battle in the street,” said Greene, who owns a trucking company.
As the shots stopped Greene heard the police yelling, “We got him! We got him!”
Click here to read the entire Tribune story.
Police did not immediately discuss the condition of the cougar, but in a video shown on the Web site of Chicago television station WLS ABC Channel 7, officers stood around what appeared to be a dead cougar in an alley.
WBBM Newsradio 780 quoted a neighbor saying that she saw a cougar running down the street, through a neighbor’s property and into an alley where police shot several times.
Cougar sightings have been reported for the past two weeks since a big cat was first spotted in North Chicago and then Round Lake Park. On Sunday, reports shifted to Wilmette.
Wilmette police received calls from four residents on Sunday morning claiming they’d spotted an animal thought to be a cougar near a Chicago Transit Authority station.
The last cougar found in Illinois was in December of 2004 in Mercer County near New Boston. It was found already dead, apparently shot with an arrow. Another cougar was found dead after it was hit by a train in Randolph County near Chester in July of 2000. Prior to 2000, the last verified record of a cougar in Illinois was from Alexander County in 1862."