As Jim and I were traveling west on I-64 from Chesterfield Valley
into St. Charles co., we crossed the MO River on the Boone Bridge.
I spotted a PEREGRINE chasing a TURKEY VULTURE away from the
bridge as if it were defending a territory.
Have Peregrines nested on the Boone Bridge before?

If this species is nesting here now I hope the future repair of the
bridge does not interfere...maybe not since it begins in the fall of 
2012 (??)

BTW, Peregrines seem to be on territory on the Melvin Price Dam at 

Charlene Malone
St. Louis co.

The Audubon Society of Missouri's Wild Bird Discussion Forum
ASM Spring Meeting: April 27, 2012 in Joplin, MO
ABA Birding Code of Ethics