In-House Registration for the 2016 - 2017 school year begins in January for families whose children attend Thunderbird. Alumni and Community Registration will follow in February 2016.

After February, children may be registered and enrolled as we have openings throughout the year. Registration for all classes requires two completed registration cards and a $55.00 non-refundable registration fee. Only one registration fee is required per family.

Please call Thunderbird to schedule an appointment to visit our classroom and to talk to us about our programs. 815-459-2266.


Each child is required, by the State of Illinois, to have a physical not more than six (6) months before entry. Therefore, children who will start in September need physicals between March and August of that year. Medicals are good for 2 years. The following immunizations are required:

  • 1 PCV

  • 4 DPT

  • 3 Polio

  • 3 HB

  • 1 MMR

  • 4 HIB

  • Chicken Pox Vaccine

A completed medical form must be on file before a child can begin school.


The Illinois Department of Children and Family Services (DCFS) now requires that parents provide a certified copy of their child's birth certificate when they enroll their child in preschool.

Please bring your child's birth certificate when you register, so that we can make a copy for our files.

If you need a certified copy of your child's birth certificate, please contact the County Clerk's office in the county where your child was born to obtain one. This can be done online.

625 Rudat Ct, Crystal Lake, IL 60014