On Ebird there is a report of a Loggerhead Shrike at Columbia Bottoms CA in St. Louis co as of March 3, today. No photos as of yet, but if you're in the area, might be worth looking.
Jackson County IL
The Audubon Society of Missouri's Wild Bird Discussion Forum
Archives / Subscription options / ASM Website / Email the list owners
ABA Birding Code of Ethics
ASM Spring Meeting: May 4-6, 2018 at Arrow Rock Details and Online Registration