Please don't think I'm being insensitive, but you might want to consider having a necropsy done. Labs listed below are from:
http://www.aphis.usda.gov/animal_health/nahln/downloads/all_nahln_lab_list.pdf
[TR] [TD] Athens Veterinary Diagnostic Laboratory 501 DW Brooks Drive University of Georgia Athens, Georgia 30602 Phone: 706-542-5568 Fax 706-542-5977
http://www.vet.uga.edu/dlab/ [/TD] [/TR]
[TR] [TD] Georgia Poultry Laboratory Network 4457 Oakwood Road Oakwood, Georgia 30566 Phone: 770-535-5996
http://www.gapoultrylab.org/ [/TD] [/TR]
[TR] [TD] University of Georgia Tifton Veterinary Diagnostic Laboratory 43 Brighton Road PO Box 1389 Tifton, Georgia 31793-3000 Phone: 229-386-3340 Fax 229-386-3399
http://www.vet.uga.edu/dlab/ [/TD] [/TR]
Don't know if you're close enough to drop off, but if you aren't, you could FedEx. This is how I send mine to the CA labs:
https://www.backyardchickens.com/t/799747/how-to-send-a-bird-for-a-necropsy-pictures State Vets [ATTACHMENT=738]StateAnimalHealthOfficials.pdf (119k. pdf file)[/ATTACHMENT] -Kathy