There are three labs listed in this link:ShellP, did you ever find a lab to do a necropasy in Georgia? What happened to your flock? I have lost 2 birds so far - they stop eating & die within a day or so, no other symptoms. I have been calling around but only get the same answer you did - bring us a live bird to kill & test. That is sort of counteractive to what I am trying to do here! I want to keep the rest alive!
http://www.aphis.usda.gov/animal_health/nahln/downloads/all_nahln_lab_list.pdf
-Kathy