There was a report of a Mississippi Kite over Champaign (IL) at 6:00PM Sunday. The sighting occurred near the intersection of Church Street and Prospect Avenue.
Next there was a sighting at 11:00AM Monday. The bird was flying over the Jordan Creek Wildlife Preserve SE of Rossville (IL). This is about 35 miles NORTHEAST of the Sunday Champaign sighting.
A third kite was reported SW of Decatur (IL) at 6:00PM Monday, along Rock Springs Road. This is approximately 45 miles SOUTHWEST of the Sunday Champaign sighting.
Based on the locations and timing of these sightings, it's likely this was three individual birds.