520 ILCS 5/4.2

It shall be unlawful for a non-resident of the State to transport from the State any wild mammals and wild birds protected by the provisions hereof except when they are carried, opened to inspection, in the personal possession of the owner thereof, who has in his or her possession at the time of so doing a non-resident hunting license, tag or permit.

Migratory game birds may be transported or shipped according to Federal regulations.