What is the Illinois State Bird? This and many other questions can be answered if you check out the Illinois Birds kit. Help youth explore the characteristics and classifications of different birds. You can also learn migration habits and hazards birds come in contact with. What do birds eat and how do they eat it? You can learn by watching them with the kit's included bird feeder. This unit was developed by the Illinois Department of Conservation Education Program. The lessons in this kit are geared toward grades 3-6.