Link to Illinois Regs

http://www.dnr.illinois.gov/hunting/...ngLicense.aspx

Quote
For resident youth aged 16 and under, the Youth Hunting License shall entitle the licensee to hunt while supervised by a validly Hunter licensed adult; parent, grandparent, or guardian who is 21 years of age or older. Possession of a Youth Hunting License shall serve in lieu of a valid hunting license, but does not exempt the licensee from compliance with the requirements of any rules and regulations.

The youth shall not hunt or carry a hunting implement, (firearm, bow, crossbow) unless the youth is accompanied by and under the close personal supervision of a validly Hunter licensed adult; parent, grandparent, or guardian who is 21 years of age or older.

At age 17 years or when the youth chooses to hunt by themselves, they are required to successfully complete a Hunter Safety course approved by the Department prior to being able to obtain their own full Hunting license and subsequently hunt by themselves End Quote

That tells me at age 13 your are illegal.
I'd be careful. But to double check I did contact L DNR

And here is a link I usedto 'Ask IL DNR'
http://www.dnr.illinois.gov/Pages/Feedback.aspx


JW