Trying to see if this will work now?
Sorry for stirring things up. Some got more information on the four letter codes at least.
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: April 29 - May 1, 2016 at Bunker Hill Retreat near Mountain View, MO Details and Online Registration